407512420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{631}}^1\times {\mathrm{659}}^1$

素因数の和:1313

約数の個数: 72

約数和(自身を含む): 998585280

約数和(自身を除く): 591072860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 631, 659, 980, 1262, 1318, 2524, 2636, 3155, 3295, 4417, 4613, 6310, 6590, 8834, 9226, 12620, 13180, 17668, 18452, 22085, 23065, 30919, 32291, 44170, 46130, 61838, 64582, 88340, 92260, 123676, 129164, 154595, 161455, 309190, 322910, 415829, 618380, 645820, 831658, 1663316, 2079145, 2910803, 4158290, 5821606, 8316580, 11643212, 14554015, 20375621, 29108030, 40751242, 58216060, 81502484, 101878105, 203756210, 407512420]

約数ペア:

[(1, 407512420), (2, 203756210), (4, 101878105), (5, 81502484), (7, 58216060), (10, 40751242), (14, 29108030), (20, 20375621), (28, 14554015), (35, 11643212), (49, 8316580), (70, 5821606), (98, 4158290), (140, 2910803), (196, 2079145), (245, 1663316), (490, 831658), (631, 645820), (659, 618380), (980, 415829), (1262, 322910), (1318, 309190), (2524, 161455), (2636, 154595), (3155, 129164), (3295, 123676), (4417, 92260), (4613, 88340), (6310, 64582), (6590, 61838), (8834, 46130), (9226, 44170), (12620, 32291), (13180, 30919), (17668, 23065), (18452, 22085)]