393967840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1681

約数の個数: 144

約数和(自身を含む): 1118323584

約数和(自身を除く): 724355744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 392, 434, 490, 496, 560, 620, 784, 868, 980, 992, 1085, 1120, 1240, 1519, 1568, 1621, 1736, 1960, 2170, 2480, 3038, 3242, 3472, 3920, 4340, 4960, 6076, 6484, 6944, 7595, 7840, 8105, 8680, 11347, 12152, 12968, 15190, 16210, 17360, 22694, 24304, 25936, 30380, 32420, 34720, 45388, 48608, 50251, 51872, 56735, 60760, 64840, 79429, 90776, 100502, 113470, 121520, 129680, 158858, 181552, 201004, 226940, 243040, 251255, 259360, 317716, 351757, 363104, 397145, 402008, 453880, 502510, 635432, 703514, 794290, 804016, 907760, 1005020, 1270864, 1407028, 1588580, 1608032, 1758785, 1815520, 2010040, 2462299, 2541728, 2814056, 3177160, 3517570, 4020080, 4924598, 5628112, 6354320, 7035140, 8040160, 9849196, 11256224, 12311495, 12708640, 14070280, 19698392, 24622990, 28140560, 39396784, 49245980, 56281120, 78793568, 98491960, 196983920, 393967840]

約数ペア:

[(1, 393967840), (2, 196983920), (4, 98491960), (5, 78793568), (7, 56281120), (8, 49245980), (10, 39396784), (14, 28140560), (16, 24622990), (20, 19698392), (28, 14070280), (31, 12708640), (32, 12311495), (35, 11256224), (40, 9849196), (49, 8040160), (56, 7035140), (62, 6354320), (70, 5628112), (80, 4924598), (98, 4020080), (112, 3517570), (124, 3177160), (140, 2814056), (155, 2541728), (160, 2462299), (196, 2010040), (217, 1815520), (224, 1758785), (245, 1608032), (248, 1588580), (280, 1407028), (310, 1270864), (392, 1005020), (434, 907760), (490, 804016), (496, 794290), (560, 703514), (620, 635432), (784, 502510), (868, 453880), (980, 402008), (992, 397145), (1085, 363104), (1120, 351757), (1240, 317716), (1519, 259360), (1568, 251255), (1621, 243040), (1736, 226940), (1960, 201004), (2170, 181552), (2480, 158858), (3038, 129680), (3242, 121520), (3472, 113470), (3920, 100502), (4340, 90776), (4960, 79429), (6076, 64840), (6484, 60760), (6944, 56735), (7595, 51872), (7840, 50251), (8105, 48608), (8680, 45388), (11347, 34720), (12152, 32420), (12968, 30380), (15190, 25936), (16210, 24304), (17360, 22694)]