15640212

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 43194144

約数和(自身を除く): 27553932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 67, 84, 98, 134, 147, 196, 201, 268, 294, 397, 402, 469, 588, 794, 804, 938, 1191, 1407, 1588, 1876, 2382, 2779, 2814, 3283, 4764, 5558, 5628, 6566, 8337, 9849, 11116, 13132, 16674, 19453, 19698, 26599, 33348, 38906, 39396, 53198, 58359, 77812, 79797, 106396, 116718, 159594, 186193, 233436, 319188, 372386, 558579, 744772, 1117158, 1303351, 2234316, 2606702, 3910053, 5213404, 7820106, 15640212]

約数ペア:

[(1, 15640212), (2, 7820106), (3, 5213404), (4, 3910053), (6, 2606702), (7, 2234316), (12, 1303351), (14, 1117158), (21, 744772), (28, 558579), (42, 372386), (49, 319188), (67, 233436), (84, 186193), (98, 159594), (134, 116718), (147, 106396), (196, 79797), (201, 77812), (268, 58359), (294, 53198), (397, 39396), (402, 38906), (469, 33348), (588, 26599), (794, 19698), (804, 19453), (938, 16674), (1191, 13132), (1407, 11116), (1588, 9849), (1876, 8337), (2382, 6566), (2779, 5628), (2814, 5558), (3283, 4764)]