19309920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{821}}^1$

素因数の和:853

約数の個数: 144

約数和(自身を含む): 70843248

約数和(自身を除く): 51533328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 821, 840, 980, 1120, 1176, 1470, 1568, 1642, 1680, 1960, 2352, 2463, 2940, 3284, 3360, 3920, 4105, 4704, 4926, 5747, 5880, 6568, 7840, 8210, 9852, 11494, 11760, 12315, 13136, 16420, 17241, 19704, 22988, 23520, 24630, 26272, 28735, 32840, 34482, 39408, 40229, 45976, 49260, 57470, 65680, 68964, 78816, 80458, 86205, 91952, 98520, 114940, 120687, 131360, 137928, 160916, 172410, 183904, 197040, 201145, 229880, 241374, 275856, 321832, 344820, 394080, 402290, 459760, 482748, 551712, 603435, 643664, 689640, 804580, 919520, 965496, 1206870, 1287328, 1379280, 1609160, 1930992, 2413740, 2758560, 3218320, 3861984, 4827480, 6436640, 9654960, 19309920]

約数ペア:

[(1, 19309920), (2, 9654960), (3, 6436640), (4, 4827480), (5, 3861984), (6, 3218320), (7, 2758560), (8, 2413740), (10, 1930992), (12, 1609160), (14, 1379280), (15, 1287328), (16, 1206870), (20, 965496), (21, 919520), (24, 804580), (28, 689640), (30, 643664), (32, 603435), (35, 551712), (40, 482748), (42, 459760), (48, 402290), (49, 394080), (56, 344820), (60, 321832), (70, 275856), (80, 241374), (84, 229880), (96, 201145), (98, 197040), (105, 183904), (112, 172410), (120, 160916), (140, 137928), (147, 131360), (160, 120687), (168, 114940), (196, 98520), (210, 91952), (224, 86205), (240, 80458), (245, 78816), (280, 68964), (294, 65680), (336, 57470), (392, 49260), (420, 45976), (480, 40229), (490, 39408), (560, 34482), (588, 32840), (672, 28735), (735, 26272), (784, 24630), (821, 23520), (840, 22988), (980, 19704), (1120, 17241), (1176, 16420), (1470, 13136), (1568, 12315), (1642, 11760), (1680, 11494), (1960, 9852), (2352, 8210), (2463, 7840), (2940, 6568), (3284, 5880), (3360, 5747), (3920, 4926), (4105, 4704)]