81529380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:834

約数の個数: 144

約数和(自身を含む): 269068800

約数和(自身を除く): 187539420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 769, 855, 930, 1116, 1140, 1178, 1395, 1538, 1710, 1767, 1860, 2307, 2356, 2790, 2945, 3076, 3420, 3534, 3845, 4614, 5301, 5580, 5890, 6921, 7068, 7690, 8835, 9228, 10602, 11535, 11780, 13842, 14611, 15380, 17670, 21204, 23070, 23839, 26505, 27684, 29222, 34605, 35340, 43833, 46140, 47678, 53010, 58444, 69210, 71517, 73055, 87666, 95356, 106020, 119195, 131499, 138420, 143034, 146110, 175332, 214551, 219165, 238390, 262998, 286068, 292220, 357585, 429102, 438330, 452941, 476780, 525996, 657495, 715170, 858204, 876660, 905882, 1072755, 1314990, 1358823, 1430340, 1811764, 2145510, 2264705, 2629980, 2717646, 4076469, 4291020, 4529410, 5435292, 6794115, 8152938, 9058820, 13588230, 16305876, 20382345, 27176460, 40764690, 81529380]

約数ペア:

[(1, 81529380), (2, 40764690), (3, 27176460), (4, 20382345), (5, 16305876), (6, 13588230), (9, 9058820), (10, 8152938), (12, 6794115), (15, 5435292), (18, 4529410), (19, 4291020), (20, 4076469), (30, 2717646), (31, 2629980), (36, 2264705), (38, 2145510), (45, 1811764), (57, 1430340), (60, 1358823), (62, 1314990), (76, 1072755), (90, 905882), (93, 876660), (95, 858204), (114, 715170), (124, 657495), (155, 525996), (171, 476780), (180, 452941), (186, 438330), (190, 429102), (228, 357585), (279, 292220), (285, 286068), (310, 262998), (342, 238390), (372, 219165), (380, 214551), (465, 175332), (558, 146110), (570, 143034), (589, 138420), (620, 131499), (684, 119195), (769, 106020), (855, 95356), (930, 87666), (1116, 73055), (1140, 71517), (1178, 69210), (1395, 58444), (1538, 53010), (1710, 47678), (1767, 46140), (1860, 43833), (2307, 35340), (2356, 34605), (2790, 29222), (2945, 27684), (3076, 26505), (3420, 23839), (3534, 23070), (3845, 21204), (4614, 17670), (5301, 15380), (5580, 14611), (5890, 13842), (6921, 11780), (7068, 11535), (7690, 10602), (8835, 9228)]