20814880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 32528480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 76, 80, 82, 95, 152, 160, 164, 167, 190, 205, 304, 328, 334, 380, 410, 608, 656, 668, 760, 779, 820, 835, 1312, 1336, 1520, 1558, 1640, 1670, 2672, 3040, 3116, 3173, 3280, 3340, 3895, 5344, 6232, 6346, 6560, 6680, 6847, 7790, 12464, 12692, 13360, 13694, 15580, 15865, 24928, 25384, 26720, 27388, 31160, 31730, 34235, 50768, 54776, 62320, 63460, 68470, 101536, 109552, 124640, 126920, 130093, 136940, 219104, 253840, 260186, 273880, 507680, 520372, 547760, 650465, 1040744, 1095520, 1300930, 2081488, 2601860, 4162976, 5203720, 10407440, 20814880]

約数ペア:

[(1, 20814880), (2, 10407440), (4, 5203720), (5, 4162976), (8, 2601860), (10, 2081488), (16, 1300930), (19, 1095520), (20, 1040744), (32, 650465), (38, 547760), (40, 520372), (41, 507680), (76, 273880), (80, 260186), (82, 253840), (95, 219104), (152, 136940), (160, 130093), (164, 126920), (167, 124640), (190, 109552), (205, 101536), (304, 68470), (328, 63460), (334, 62320), (380, 54776), (410, 50768), (608, 34235), (656, 31730), (668, 31160), (760, 27388), (779, 26720), (820, 25384), (835, 24928), (1312, 15865), (1336, 15580), (1520, 13694), (1558, 13360), (1640, 12692), (1670, 12464), (2672, 7790), (3040, 6847), (3116, 6680), (3173, 6560), (3280, 6346), (3340, 6232), (3895, 5344)]