18389800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:683

約数の個数: 96

約数和(自身を含む): 50309280

約数和(自身を除く): 31919480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 88, 100, 104, 110, 130, 143, 200, 220, 260, 275, 286, 325, 440, 520, 550, 572, 643, 650, 715, 1100, 1144, 1286, 1300, 1430, 2200, 2572, 2600, 2860, 3215, 3575, 5144, 5720, 6430, 7073, 7150, 8359, 12860, 14146, 14300, 16075, 16718, 25720, 28292, 28600, 32150, 33436, 35365, 41795, 56584, 64300, 66872, 70730, 83590, 91949, 128600, 141460, 167180, 176825, 183898, 208975, 282920, 334360, 353650, 367796, 417950, 459745, 707300, 735592, 835900, 919490, 1414600, 1671800, 1838980, 2298725, 3677960, 4597450, 9194900, 18389800]

約数ペア:

[(1, 18389800), (2, 9194900), (4, 4597450), (5, 3677960), (8, 2298725), (10, 1838980), (11, 1671800), (13, 1414600), (20, 919490), (22, 835900), (25, 735592), (26, 707300), (40, 459745), (44, 417950), (50, 367796), (52, 353650), (55, 334360), (65, 282920), (88, 208975), (100, 183898), (104, 176825), (110, 167180), (130, 141460), (143, 128600), (200, 91949), (220, 83590), (260, 70730), (275, 66872), (286, 64300), (325, 56584), (440, 41795), (520, 35365), (550, 33436), (572, 32150), (643, 28600), (650, 28292), (715, 25720), (1100, 16718), (1144, 16075), (1286, 14300), (1300, 14146), (1430, 12860), (2200, 8359), (2572, 7150), (2600, 7073), (2860, 6430), (3215, 5720), (3575, 5144)]