80949880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 218764800

約数和(自身を除く): 137814920

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 23, 38, 40, 44, 46, 55, 76, 88, 92, 95, 110, 115, 152, 184, 190, 209, 220, 230, 253, 380, 418, 421, 437, 440, 460, 506, 760, 836, 842, 874, 920, 1012, 1045, 1265, 1672, 1684, 1748, 2024, 2090, 2105, 2185, 2530, 3368, 3496, 4180, 4210, 4370, 4631, 4807, 5060, 7999, 8360, 8420, 8740, 9262, 9614, 9683, 10120, 15998, 16840, 17480, 18524, 19228, 19366, 23155, 24035, 31996, 37048, 38456, 38732, 39995, 46310, 48070, 48415, 63992, 77464, 79990, 87989, 92620, 96140, 96830, 106513, 159980, 175978, 183977, 185240, 192280, 193660, 213026, 319960, 351956, 367954, 387320, 426052, 439945, 532565, 703912, 735908, 852104, 879890, 919885, 1065130, 1471816, 1759780, 1839770, 2023747, 2130260, 3519560, 3679540, 4047494, 4260520, 7359080, 8094988, 10118735, 16189976, 20237470, 40474940, 80949880]

約数ペア:

[(1, 80949880), (2, 40474940), (4, 20237470), (5, 16189976), (8, 10118735), (10, 8094988), (11, 7359080), (19, 4260520), (20, 4047494), (22, 3679540), (23, 3519560), (38, 2130260), (40, 2023747), (44, 1839770), (46, 1759780), (55, 1471816), (76, 1065130), (88, 919885), (92, 879890), (95, 852104), (110, 735908), (115, 703912), (152, 532565), (184, 439945), (190, 426052), (209, 387320), (220, 367954), (230, 351956), (253, 319960), (380, 213026), (418, 193660), (421, 192280), (437, 185240), (440, 183977), (460, 175978), (506, 159980), (760, 106513), (836, 96830), (842, 96140), (874, 92620), (920, 87989), (1012, 79990), (1045, 77464), (1265, 63992), (1672, 48415), (1684, 48070), (1748, 46310), (2024, 39995), (2090, 38732), (2105, 38456), (2185, 37048), (2530, 31996), (3368, 24035), (3496, 23155), (4180, 19366), (4210, 19228), (4370, 18524), (4631, 17480), (4807, 16840), (5060, 15998), (7999, 10120), (8360, 9683), (8420, 9614), (8740, 9262)]