68855640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{81971}}^1$

素因数の和:81992

約数の個数: 64

約数和(自身を含む): 236079360

約数和(自身を除く): 167223720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 81971, 163942, 245913, 327884, 409855, 491826, 573797, 655768, 819710, 983652, 1147594, 1229565, 1639420, 1721391, 1967304, 2295188, 2459130, 2868985, 3278840, 3442782, 4590376, 4918260, 5737970, 6885564, 8606955, 9836520, 11475940, 13771128, 17213910, 22951880, 34427820, 68855640]

約数ペア:

[(1, 68855640), (2, 34427820), (3, 22951880), (4, 17213910), (5, 13771128), (6, 11475940), (7, 9836520), (8, 8606955), (10, 6885564), (12, 5737970), (14, 4918260), (15, 4590376), (20, 3442782), (21, 3278840), (24, 2868985), (28, 2459130), (30, 2295188), (35, 1967304), (40, 1721391), (42, 1639420), (56, 1229565), (60, 1147594), (70, 983652), (84, 819710), (105, 655768), (120, 573797), (140, 491826), (168, 409855), (210, 327884), (280, 245913), (420, 163942), (840, 81971)]