320426480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 850445568

約数和(自身を除く): 530019088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 83, 88, 107, 110, 164, 166, 176, 205, 214, 220, 328, 332, 410, 415, 428, 440, 451, 535, 656, 664, 820, 830, 856, 880, 902, 913, 1070, 1177, 1328, 1640, 1660, 1712, 1804, 1826, 2140, 2255, 2354, 3280, 3320, 3403, 3608, 3652, 4280, 4387, 4510, 4565, 4708, 5885, 6640, 6806, 7216, 7304, 8560, 8774, 8881, 9020, 9130, 9416, 11770, 13612, 14608, 17015, 17548, 17762, 18040, 18260, 18832, 21935, 23540, 27224, 34030, 35096, 35524, 36080, 36520, 37433, 43870, 44405, 47080, 48257, 54448, 68060, 70192, 71048, 73040, 74866, 87740, 88810, 94160, 96514, 97691, 136120, 142096, 149732, 175480, 177620, 187165, 193028, 195382, 241285, 272240, 299464, 350960, 355240, 364121, 374330, 386056, 390764, 482570, 488455, 598928, 710480, 728242, 748660, 772112, 781528, 965140, 976910, 1456484, 1497320, 1563056, 1820605, 1930280, 1953820, 2912968, 2994640, 3641210, 3860560, 3907640, 4005331, 5825936, 7282420, 7815280, 8010662, 14564840, 16021324, 20026655, 29129680, 32042648, 40053310, 64085296, 80106620, 160213240, 320426480]

約数ペア:

[(1, 320426480), (2, 160213240), (4, 80106620), (5, 64085296), (8, 40053310), (10, 32042648), (11, 29129680), (16, 20026655), (20, 16021324), (22, 14564840), (40, 8010662), (41, 7815280), (44, 7282420), (55, 5825936), (80, 4005331), (82, 3907640), (83, 3860560), (88, 3641210), (107, 2994640), (110, 2912968), (164, 1953820), (166, 1930280), (176, 1820605), (205, 1563056), (214, 1497320), (220, 1456484), (328, 976910), (332, 965140), (410, 781528), (415, 772112), (428, 748660), (440, 728242), (451, 710480), (535, 598928), (656, 488455), (664, 482570), (820, 390764), (830, 386056), (856, 374330), (880, 364121), (902, 355240), (913, 350960), (1070, 299464), (1177, 272240), (1328, 241285), (1640, 195382), (1660, 193028), (1712, 187165), (1804, 177620), (1826, 175480), (2140, 149732), (2255, 142096), (2354, 136120), (3280, 97691), (3320, 96514), (3403, 94160), (3608, 88810), (3652, 87740), (4280, 74866), (4387, 73040), (4510, 71048), (4565, 70192), (4708, 68060), (5885, 54448), (6640, 48257), (6806, 47080), (7216, 44405), (7304, 43870), (8560, 37433), (8774, 36520), (8881, 36080), (9020, 35524), (9130, 35096), (9416, 34030), (11770, 27224), (13612, 23540), (14608, 21935), (17015, 18832), (17548, 18260), (17762, 18040)]