20843360

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 32500000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 79, 80, 85, 97, 136, 158, 160, 170, 194, 272, 316, 340, 388, 395, 485, 544, 632, 680, 776, 790, 970, 1264, 1343, 1360, 1552, 1580, 1649, 1940, 2528, 2686, 2720, 3104, 3160, 3298, 3880, 5372, 6320, 6596, 6715, 7663, 7760, 8245, 10744, 12640, 13192, 13430, 15326, 15520, 16490, 21488, 26384, 26860, 30652, 32980, 38315, 42976, 52768, 53720, 61304, 65960, 76630, 107440, 122608, 130271, 131920, 153260, 214880, 245216, 260542, 263840, 306520, 521084, 613040, 651355, 1042168, 1226080, 1302710, 2084336, 2605420, 4168672, 5210840, 10421680, 20843360]

約数ペア:

[(1, 20843360), (2, 10421680), (4, 5210840), (5, 4168672), (8, 2605420), (10, 2084336), (16, 1302710), (17, 1226080), (20, 1042168), (32, 651355), (34, 613040), (40, 521084), (68, 306520), (79, 263840), (80, 260542), (85, 245216), (97, 214880), (136, 153260), (158, 131920), (160, 130271), (170, 122608), (194, 107440), (272, 76630), (316, 65960), (340, 61304), (388, 53720), (395, 52768), (485, 42976), (544, 38315), (632, 32980), (680, 30652), (776, 26860), (790, 26384), (970, 21488), (1264, 16490), (1343, 15520), (1360, 15326), (1552, 13430), (1580, 13192), (1649, 12640), (1940, 10744), (2528, 8245), (2686, 7760), (2720, 7663), (3104, 6715), (3160, 6596), (3298, 6320), (3880, 5372)]