4642299640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1319}}^1$

素因数の和:1781

約数の個数: 128

約数和(自身を含む): 12032064000

約数和(自身を除く): 7389764360

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 421, 440, 760, 836, 842, 1045, 1319, 1672, 1684, 2090, 2105, 2638, 3368, 4180, 4210, 4631, 5276, 6595, 7999, 8360, 8420, 9262, 10552, 13190, 14509, 15998, 16840, 18524, 23155, 25061, 26380, 29018, 31996, 37048, 39995, 46310, 50122, 52760, 58036, 63992, 72545, 79990, 87989, 92620, 100244, 116072, 125305, 145090, 159980, 175978, 185240, 200488, 250610, 275671, 290180, 319960, 351956, 439945, 501220, 551342, 555299, 580360, 703912, 879890, 1002440, 1102684, 1110598, 1378355, 1759780, 2205368, 2221196, 2756710, 2776495, 3519560, 4442392, 5513420, 5552990, 6108289, 10550681, 11026840, 11105980, 12216578, 21101362, 22211960, 24433156, 30541445, 42202724, 48866312, 52753405, 61082890, 84405448, 105506810, 116057491, 122165780, 211013620, 232114982, 244331560, 422027240, 464229964, 580287455, 928459928, 1160574910, 2321149820, 4642299640]

約数ペア:

[(1, 4642299640), (2, 2321149820), (4, 1160574910), (5, 928459928), (8, 580287455), (10, 464229964), (11, 422027240), (19, 244331560), (20, 232114982), (22, 211013620), (38, 122165780), (40, 116057491), (44, 105506810), (55, 84405448), (76, 61082890), (88, 52753405), (95, 48866312), (110, 42202724), (152, 30541445), (190, 24433156), (209, 22211960), (220, 21101362), (380, 12216578), (418, 11105980), (421, 11026840), (440, 10550681), (760, 6108289), (836, 5552990), (842, 5513420), (1045, 4442392), (1319, 3519560), (1672, 2776495), (1684, 2756710), (2090, 2221196), (2105, 2205368), (2638, 1759780), (3368, 1378355), (4180, 1110598), (4210, 1102684), (4631, 1002440), (5276, 879890), (6595, 703912), (7999, 580360), (8360, 555299), (8420, 551342), (9262, 501220), (10552, 439945), (13190, 351956), (14509, 319960), (15998, 290180), (16840, 275671), (18524, 250610), (23155, 200488), (25061, 185240), (26380, 175978), (29018, 159980), (31996, 145090), (37048, 125305), (39995, 116072), (46310, 100244), (50122, 92620), (52760, 87989), (58036, 79990), (63992, 72545)]