28218450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:556

約数の個数: 96

約数和(自身を含む): 78120000

約数和(自身を除く): 49901550

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 29, 30, 39, 50, 58, 65, 75, 78, 87, 130, 145, 150, 174, 195, 290, 325, 377, 390, 435, 499, 650, 725, 754, 870, 975, 998, 1131, 1450, 1497, 1885, 1950, 2175, 2262, 2495, 2994, 3770, 4350, 4990, 5655, 6487, 7485, 9425, 11310, 12475, 12974, 14471, 14970, 18850, 19461, 24950, 28275, 28942, 32435, 37425, 38922, 43413, 56550, 64870, 72355, 74850, 86826, 97305, 144710, 162175, 188123, 194610, 217065, 324350, 361775, 376246, 434130, 486525, 564369, 723550, 940615, 973050, 1085325, 1128738, 1881230, 2170650, 2821845, 4703075, 5643690, 9406150, 14109225, 28218450]

約数ペア:

[(1, 28218450), (2, 14109225), (3, 9406150), (5, 5643690), (6, 4703075), (10, 2821845), (13, 2170650), (15, 1881230), (25, 1128738), (26, 1085325), (29, 973050), (30, 940615), (39, 723550), (50, 564369), (58, 486525), (65, 434130), (75, 376246), (78, 361775), (87, 324350), (130, 217065), (145, 194610), (150, 188123), (174, 162175), (195, 144710), (290, 97305), (325, 86826), (377, 74850), (390, 72355), (435, 64870), (499, 56550), (650, 43413), (725, 38922), (754, 37425), (870, 32435), (975, 28942), (998, 28275), (1131, 24950), (1450, 19461), (1497, 18850), (1885, 14970), (1950, 14471), (2175, 12974), (2262, 12475), (2495, 11310), (2994, 9425), (3770, 7485), (4350, 6487), (4990, 5655)]