19915669760

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{10243}}^1$

素因数の和:10309

約数の個数: 216

約数和(自身を含む): 57288381696

約数和(自身を除く): 37372711936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 245, 248, 256, 280, 310, 320, 392, 434, 448, 490, 496, 560, 620, 640, 784, 868, 896, 980, 992, 1085, 1120, 1240, 1280, 1519, 1568, 1736, 1792, 1960, 1984, 2170, 2240, 2480, 3038, 3136, 3472, 3920, 3968, 4340, 4480, 4960, 6076, 6272, 6944, 7595, 7840, 7936, 8680, 8960, 9920, 10243, 12152, 12544, 13888, 15190, 15680, 17360, 19840, 20486, 24304, 27776, 30380, 31360, 34720, 39680, 40972, 48608, 51215, 55552, 60760, 62720, 69440, 71701, 81944, 97216, 102430, 121520, 138880, 143402, 163888, 194432, 204860, 243040, 277760, 286804, 317533, 327776, 358505, 388864, 409720, 486080, 501907, 573608, 635066, 655552, 717010, 819440, 972160, 1003814, 1147216, 1270132, 1311104, 1434020, 1587665, 1638880, 1944320, 2007628, 2222731, 2294432, 2509535, 2540264, 2622208, 2868040, 3175330, 3277760, 4015256, 4445462, 4588864, 5019070, 5080528, 5736080, 6350660, 6555520, 8030512, 8890924, 9177728, 10038140, 10161056, 11113655, 11472160, 12701320, 13111040, 15559117, 16061024, 17781848, 18355456, 20076280, 20322112, 22227310, 22944320, 25402640, 31118234, 32122048, 35563696, 40152560, 40644224, 44454620, 45888640, 50805280, 62236468, 64244096, 71127392, 77795585, 80305120, 81288448, 88909240, 91777280, 101610560, 124472936, 128488192, 142254784, 155591170, 160610240, 177818480, 203221120, 248945872, 284509568, 311182340, 321220480, 355636960, 406442240, 497891744, 569019136, 622364680, 642440960, 711273920, 995783488, 1244729360, 1422547840, 1991566976, 2489458720, 2845095680, 3983133952, 4978917440, 9957834880, 19915669760]

約数ペア:

[(1, 19915669760), (2, 9957834880), (4, 4978917440), (5, 3983133952), (7, 2845095680), (8, 2489458720), (10, 1991566976), (14, 1422547840), (16, 1244729360), (20, 995783488), (28, 711273920), (31, 642440960), (32, 622364680), (35, 569019136), (40, 497891744), (49, 406442240), (56, 355636960), (62, 321220480), (64, 311182340), (70, 284509568), (80, 248945872), (98, 203221120), (112, 177818480), (124, 160610240), (128, 155591170), (140, 142254784), (155, 128488192), (160, 124472936), (196, 101610560), (217, 91777280), (224, 88909240), (245, 81288448), (248, 80305120), (256, 77795585), (280, 71127392), (310, 64244096), (320, 62236468), (392, 50805280), (434, 45888640), (448, 44454620), (490, 40644224), (496, 40152560), (560, 35563696), (620, 32122048), (640, 31118234), (784, 25402640), (868, 22944320), (896, 22227310), (980, 20322112), (992, 20076280), (1085, 18355456), (1120, 17781848), (1240, 16061024), (1280, 15559117), (1519, 13111040), (1568, 12701320), (1736, 11472160), (1792, 11113655), (1960, 10161056), (1984, 10038140), (2170, 9177728), (2240, 8890924), (2480, 8030512), (3038, 6555520), (3136, 6350660), (3472, 5736080), (3920, 5080528), (3968, 5019070), (4340, 4588864), (4480, 4445462), (4960, 4015256), (6076, 3277760), (6272, 3175330), (6944, 2868040), (7595, 2622208), (7840, 2540264), (7936, 2509535), (8680, 2294432), (8960, 2222731), (9920, 2007628), (10243, 1944320), (12152, 1638880), (12544, 1587665), (13888, 1434020), (15190, 1311104), (15680, 1270132), (17360, 1147216), (19840, 1003814), (20486, 972160), (24304, 819440), (27776, 717010), (30380, 655552), (31360, 635066), (34720, 573608), (39680, 501907), (40972, 486080), (48608, 409720), (51215, 388864), (55552, 358505), (60760, 327776), (62720, 317533), (69440, 286804), (71701, 277760), (81944, 243040), (97216, 204860), (102430, 194432), (121520, 163888), (138880, 143402)]