13705720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1628

約数の個数: 64

約数和(自身を含む): 36403200

約数和(自身を除く): 22697480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1579, 1736, 2170, 3158, 4340, 6316, 7895, 8680, 11053, 12632, 15790, 22106, 31580, 44212, 48949, 55265, 63160, 88424, 97898, 110530, 195796, 221060, 244745, 342643, 391592, 442120, 489490, 685286, 978980, 1370572, 1713215, 1957960, 2741144, 3426430, 6852860, 13705720]

約数ペア:

[(1, 13705720), (2, 6852860), (4, 3426430), (5, 2741144), (7, 1957960), (8, 1713215), (10, 1370572), (14, 978980), (20, 685286), (28, 489490), (31, 442120), (35, 391592), (40, 342643), (56, 244745), (62, 221060), (70, 195796), (124, 110530), (140, 97898), (155, 88424), (217, 63160), (248, 55265), (280, 48949), (310, 44212), (434, 31580), (620, 22106), (868, 15790), (1085, 12632), (1240, 11053), (1579, 8680), (1736, 7895), (2170, 6316), (3158, 4340)]