39680720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:372

約数の個数: 80

約数和(自身を含む): 98832960

約数和(自身を除く): 59152240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 163, 170, 179, 272, 326, 340, 358, 652, 680, 716, 815, 895, 1304, 1360, 1432, 1630, 1790, 2608, 2771, 2864, 3043, 3260, 3580, 5542, 6086, 6520, 7160, 11084, 12172, 13040, 13855, 14320, 15215, 22168, 24344, 27710, 29177, 30430, 44336, 48688, 55420, 58354, 60860, 110840, 116708, 121720, 145885, 221680, 233416, 243440, 291770, 466832, 496009, 583540, 992018, 1167080, 1984036, 2334160, 2480045, 3968072, 4960090, 7936144, 9920180, 19840360, 39680720]

約数ペア:

[(1, 39680720), (2, 19840360), (4, 9920180), (5, 7936144), (8, 4960090), (10, 3968072), (16, 2480045), (17, 2334160), (20, 1984036), (34, 1167080), (40, 992018), (68, 583540), (80, 496009), (85, 466832), (136, 291770), (163, 243440), (170, 233416), (179, 221680), (272, 145885), (326, 121720), (340, 116708), (358, 110840), (652, 60860), (680, 58354), (716, 55420), (815, 48688), (895, 44336), (1304, 30430), (1360, 29177), (1432, 27710), (1630, 24344), (1790, 22168), (2608, 15215), (2771, 14320), (2864, 13855), (3043, 13040), (3260, 12172), (3580, 11084), (5542, 7160), (6086, 6520)]