28915900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 71479800

約数和(自身を除く): 42563900

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 59, 65, 100, 116, 118, 130, 145, 169, 236, 260, 290, 295, 325, 338, 377, 580, 590, 650, 676, 725, 754, 767, 845, 1180, 1300, 1450, 1475, 1508, 1534, 1690, 1711, 1885, 2900, 2950, 3068, 3380, 3422, 3770, 3835, 4225, 4901, 5900, 6844, 7540, 7670, 8450, 8555, 9425, 9802, 9971, 15340, 16900, 17110, 18850, 19175, 19604, 19942, 22243, 24505, 34220, 37700, 38350, 39884, 42775, 44486, 49010, 49855, 76700, 85550, 88972, 98020, 99710, 111215, 122525, 171100, 199420, 222430, 245050, 249275, 289159, 444860, 490100, 498550, 556075, 578318, 997100, 1112150, 1156636, 1445795, 2224300, 2891590, 5783180, 7228975, 14457950, 28915900]

約数ペア:

[(1, 28915900), (2, 14457950), (4, 7228975), (5, 5783180), (10, 2891590), (13, 2224300), (20, 1445795), (25, 1156636), (26, 1112150), (29, 997100), (50, 578318), (52, 556075), (58, 498550), (59, 490100), (65, 444860), (100, 289159), (116, 249275), (118, 245050), (130, 222430), (145, 199420), (169, 171100), (236, 122525), (260, 111215), (290, 99710), (295, 98020), (325, 88972), (338, 85550), (377, 76700), (580, 49855), (590, 49010), (650, 44486), (676, 42775), (725, 39884), (754, 38350), (767, 37700), (845, 34220), (1180, 24505), (1300, 22243), (1450, 19942), (1475, 19604), (1508, 19175), (1534, 18850), (1690, 17110), (1711, 16900), (1885, 15340), (2900, 9971), (2950, 9802), (3068, 9425), (3380, 8555), (3422, 8450), (3770, 7670), (3835, 7540), (4225, 6844), (4901, 5900)]