254877420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{86693}}^1$

素因数の和:86719

約数の個数: 72

約数和(自身を含む): 830181744

約数和(自身を除く): 575304324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 86693, 173386, 260079, 346772, 433465, 520158, 606851, 866930, 1040316, 1213702, 1300395, 1733860, 1820553, 2427404, 2600790, 3034255, 3641106, 4247957, 5201580, 6068510, 7282212, 8495914, 9102765, 12137020, 12743871, 16991828, 18205530, 21239785, 25487742, 36411060, 42479570, 50975484, 63719355, 84959140, 127438710, 254877420]

約数ペア:

[(1, 254877420), (2, 127438710), (3, 84959140), (4, 63719355), (5, 50975484), (6, 42479570), (7, 36411060), (10, 25487742), (12, 21239785), (14, 18205530), (15, 16991828), (20, 12743871), (21, 12137020), (28, 9102765), (30, 8495914), (35, 7282212), (42, 6068510), (49, 5201580), (60, 4247957), (70, 3641106), (84, 3034255), (98, 2600790), (105, 2427404), (140, 1820553), (147, 1733860), (196, 1300395), (210, 1213702), (245, 1040316), (294, 866930), (420, 606851), (490, 520158), (588, 433465), (735, 346772), (980, 260079), (1470, 173386), (2940, 86693)]