31720130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 67350528

約数和(自身を除く): 35630398

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 403, 442, 463, 527, 806, 926, 1054, 1105, 2015, 2210, 2315, 2635, 4030, 4630, 5270, 6019, 6851, 7871, 12038, 13702, 14353, 15742, 28706, 30095, 34255, 39355, 60190, 68510, 71765, 78710, 102323, 143530, 186589, 204646, 244001, 373178, 488002, 511615, 932945, 1023230, 1220005, 1865890, 2440010, 3172013, 6344026, 15860065, 31720130]

約数ペア:

[(1, 31720130), (2, 15860065), (5, 6344026), (10, 3172013), (13, 2440010), (17, 1865890), (26, 1220005), (31, 1023230), (34, 932945), (62, 511615), (65, 488002), (85, 373178), (130, 244001), (155, 204646), (170, 186589), (221, 143530), (310, 102323), (403, 78710), (442, 71765), (463, 68510), (527, 60190), (806, 39355), (926, 34255), (1054, 30095), (1105, 28706), (2015, 15742), (2210, 14353), (2315, 13702), (2635, 12038), (4030, 7871), (4630, 6851), (5270, 6019)]