20178210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1669}}^1$

素因数の和:1723

約数の個数: 64

約数和(自身を含む): 53867520

約数和(自身を除く): 33689310

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1669, 2015, 2418, 3338, 4030, 5007, 6045, 8345, 10014, 12090, 16690, 21697, 25035, 43394, 50070, 51739, 65091, 103478, 108485, 130182, 155217, 216970, 258695, 310434, 325455, 517390, 650910, 672607, 776085, 1345214, 1552170, 2017821, 3363035, 4035642, 6726070, 10089105, 20178210]

約数ペア:

[(1, 20178210), (2, 10089105), (3, 6726070), (5, 4035642), (6, 3363035), (10, 2017821), (13, 1552170), (15, 1345214), (26, 776085), (30, 672607), (31, 650910), (39, 517390), (62, 325455), (65, 310434), (78, 258695), (93, 216970), (130, 155217), (155, 130182), (186, 108485), (195, 103478), (310, 65091), (390, 51739), (403, 50070), (465, 43394), (806, 25035), (930, 21697), (1209, 16690), (1669, 12090), (2015, 10014), (2418, 8345), (3338, 6045), (4030, 5007)]