211323825

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 391280760

約数和(自身を除く): 179956935

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 89, 173, 183, 225, 267, 305, 445, 519, 549, 801, 865, 915, 1335, 1525, 1557, 2225, 2595, 2745, 4005, 4325, 4575, 5429, 6675, 7785, 10553, 12975, 13725, 15397, 16287, 20025, 27145, 31659, 38925, 46191, 48861, 52765, 76985, 81435, 94977, 135725, 138573, 158295, 230955, 244305, 263825, 384925, 407175, 474885, 692865, 791475, 939217, 1154775, 1221525, 2374425, 2817651, 3464325, 4696085, 8452953, 14088255, 23480425, 42264765, 70441275, 211323825]

約数ペア:

[(1, 211323825), (3, 70441275), (5, 42264765), (9, 23480425), (15, 14088255), (25, 8452953), (45, 4696085), (61, 3464325), (75, 2817651), (89, 2374425), (173, 1221525), (183, 1154775), (225, 939217), (267, 791475), (305, 692865), (445, 474885), (519, 407175), (549, 384925), (801, 263825), (865, 244305), (915, 230955), (1335, 158295), (1525, 138573), (1557, 135725), (2225, 94977), (2595, 81435), (2745, 76985), (4005, 52765), (4325, 48861), (4575, 46191), (5429, 38925), (6675, 31659), (7785, 27145), (10553, 20025), (12975, 16287), (13725, 15397)]