31058540

素因数分解:

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

素因数の和:159

約数の個数: 72

約数和(自身を含む): 72043440

約数和(自身を除く): 40984900

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 47, 74, 76, 94, 95, 148, 185, 188, 190, 235, 370, 380, 470, 703, 740, 893, 940, 1406, 1739, 1786, 2209, 2812, 3478, 3515, 3572, 4418, 4465, 6956, 7030, 8695, 8836, 8930, 11045, 14060, 17390, 17860, 22090, 33041, 34780, 41971, 44180, 66082, 81733, 83942, 132164, 163466, 165205, 167884, 209855, 326932, 330410, 408665, 419710, 660820, 817330, 839420, 1552927, 1634660, 3105854, 6211708, 7764635, 15529270, 31058540]

約数ペア:

[(1, 31058540), (2, 15529270), (4, 7764635), (5, 6211708), (10, 3105854), (19, 1634660), (20, 1552927), (37, 839420), (38, 817330), (47, 660820), (74, 419710), (76, 408665), (94, 330410), (95, 326932), (148, 209855), (185, 167884), (188, 165205), (190, 163466), (235, 132164), (370, 83942), (380, 81733), (470, 66082), (703, 44180), (740, 41971), (893, 34780), (940, 33041), (1406, 22090), (1739, 17860), (1786, 17390), (2209, 14060), (2812, 11045), (3478, 8930), (3515, 8836), (3572, 8695), (4418, 7030), (4465, 6956)]