12555580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 29187648

約数和(自身を除く): 16632068

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 47, 74, 76, 94, 95, 148, 185, 188, 190, 235, 361, 370, 380, 470, 703, 722, 740, 893, 940, 1406, 1444, 1739, 1786, 1805, 2812, 3478, 3515, 3572, 3610, 4465, 6956, 7030, 7220, 8695, 8930, 13357, 14060, 16967, 17390, 17860, 26714, 33041, 33934, 34780, 53428, 66082, 66785, 67868, 84835, 132164, 133570, 165205, 169670, 267140, 330410, 339340, 627779, 660820, 1255558, 2511116, 3138895, 6277790, 12555580]

約数ペア:

[(1, 12555580), (2, 6277790), (4, 3138895), (5, 2511116), (10, 1255558), (19, 660820), (20, 627779), (37, 339340), (38, 330410), (47, 267140), (74, 169670), (76, 165205), (94, 133570), (95, 132164), (148, 84835), (185, 67868), (188, 66785), (190, 66082), (235, 53428), (361, 34780), (370, 33934), (380, 33041), (470, 26714), (703, 17860), (722, 17390), (740, 16967), (893, 14060), (940, 13357), (1406, 8930), (1444, 8695), (1739, 7220), (1786, 7030), (1805, 6956), (2812, 4465), (3478, 3610), (3515, 3572)]