408040020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{2161}}^1$

素因数の和:3225

約数の個数: 72

約数和(自身を含む): 1239474600

約数和(自身を除く): 831434580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1049, 2098, 2161, 3147, 4196, 4322, 5245, 6294, 6483, 8644, 9441, 10490, 10805, 12588, 12966, 15735, 18882, 19449, 20980, 21610, 25932, 31470, 32415, 37764, 38898, 43220, 47205, 62940, 64830, 77796, 94410, 97245, 129660, 188820, 194490, 388980, 2266889, 4533778, 6800667, 9067556, 11334445, 13601334, 20402001, 22668890, 27202668, 34003335, 40804002, 45337780, 68006670, 81608004, 102010005, 136013340, 204020010, 408040020]

約数ペア:

[(1, 408040020), (2, 204020010), (3, 136013340), (4, 102010005), (5, 81608004), (6, 68006670), (9, 45337780), (10, 40804002), (12, 34003335), (15, 27202668), (18, 22668890), (20, 20402001), (30, 13601334), (36, 11334445), (45, 9067556), (60, 6800667), (90, 4533778), (180, 2266889), (1049, 388980), (2098, 194490), (2161, 188820), (3147, 129660), (4196, 97245), (4322, 94410), (5245, 77796), (6294, 64830), (6483, 62940), (8644, 47205), (9441, 43220), (10490, 38898), (10805, 37764), (12588, 32415), (12966, 31470), (15735, 25932), (18882, 21610), (19449, 20980)]