31388950

素因数分解:

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

素因数の和:134

約数の個数: 72

約数和(自身を含む): 64629792

約数和(自身を除く): 33240842

約数列:

[1, 2, 5, 10, 19, 25, 37, 38, 47, 50, 74, 94, 95, 185, 190, 235, 361, 370, 470, 475, 703, 722, 893, 925, 950, 1175, 1406, 1739, 1786, 1805, 1850, 2350, 3478, 3515, 3610, 4465, 7030, 8695, 8930, 9025, 13357, 16967, 17390, 17575, 18050, 22325, 26714, 33041, 33934, 35150, 43475, 44650, 66082, 66785, 84835, 86950, 133570, 165205, 169670, 330410, 333925, 424175, 627779, 667850, 826025, 848350, 1255558, 1652050, 3138895, 6277790, 15694475, 31388950]

約数ペア:

[(1, 31388950), (2, 15694475), (5, 6277790), (10, 3138895), (19, 1652050), (25, 1255558), (37, 848350), (38, 826025), (47, 667850), (50, 627779), (74, 424175), (94, 333925), (95, 330410), (185, 169670), (190, 165205), (235, 133570), (361, 86950), (370, 84835), (470, 66785), (475, 66082), (703, 44650), (722, 43475), (893, 35150), (925, 33934), (950, 33041), (1175, 26714), (1406, 22325), (1739, 18050), (1786, 17575), (1805, 17390), (1850, 16967), (2350, 13357), (3478, 9025), (3515, 8930), (3610, 8695), (4465, 7030)]