205348520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:895

約数の個数: 96

約数和(自身を含む): 514456920

約数和(自身を除く): 309108400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 169, 185, 260, 296, 338, 370, 481, 520, 676, 740, 821, 845, 962, 1352, 1480, 1642, 1690, 1924, 2405, 3284, 3380, 3848, 4105, 4810, 6253, 6568, 6760, 8210, 9620, 10673, 12506, 16420, 19240, 21346, 25012, 30377, 31265, 32840, 42692, 50024, 53365, 60754, 62530, 85384, 106730, 121508, 125060, 138749, 151885, 213460, 243016, 250120, 277498, 303770, 394901, 426920, 554996, 607540, 693745, 789802, 1109992, 1215080, 1387490, 1579604, 1974505, 2774980, 3159208, 3949010, 5133713, 5549960, 7898020, 10267426, 15796040, 20534852, 25668565, 41069704, 51337130, 102674260, 205348520]

約数ペア:

[(1, 205348520), (2, 102674260), (4, 51337130), (5, 41069704), (8, 25668565), (10, 20534852), (13, 15796040), (20, 10267426), (26, 7898020), (37, 5549960), (40, 5133713), (52, 3949010), (65, 3159208), (74, 2774980), (104, 1974505), (130, 1579604), (148, 1387490), (169, 1215080), (185, 1109992), (260, 789802), (296, 693745), (338, 607540), (370, 554996), (481, 426920), (520, 394901), (676, 303770), (740, 277498), (821, 250120), (845, 243016), (962, 213460), (1352, 151885), (1480, 138749), (1642, 125060), (1690, 121508), (1924, 106730), (2405, 85384), (3284, 62530), (3380, 60754), (3848, 53365), (4105, 50024), (4810, 42692), (6253, 32840), (6568, 31265), (6760, 30377), (8210, 25012), (9620, 21346), (10673, 19240), (12506, 16420)]