721000229840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{72551}}^1$

素因数の和:73089

約数の個数: 160

約数和(自身を含む): 1912141043712

約数和(自身を除く): 1191140813872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 491, 506, 880, 920, 982, 1012, 1265, 1840, 1964, 2024, 2455, 2530, 3928, 4048, 4910, 5060, 5401, 7856, 9820, 10120, 10802, 11293, 19640, 20240, 21604, 22586, 27005, 39280, 43208, 45172, 54010, 56465, 72551, 86416, 90344, 108020, 112930, 124223, 145102, 180688, 216040, 225860, 248446, 290204, 362755, 432080, 451720, 496892, 580408, 621115, 725510, 798061, 903440, 993784, 1160816, 1242230, 1451020, 1596122, 1668673, 1987568, 2484460, 2902040, 3192244, 3337346, 3990305, 4968920, 5804080, 6384488, 6674692, 7980610, 8343365, 9937840, 12768976, 13349384, 15961220, 16686730, 18355403, 26698768, 31922440, 33373460, 35622541, 36710806, 63844880, 66746920, 71245082, 73421612, 91777015, 133493840, 142490164, 146843224, 178112705, 183554030, 284980328, 293686448, 356225410, 367108060, 391847951, 569960656, 712450820, 734216120, 783695902, 819318443, 1424901640, 1468432240, 1567391804, 1638636886, 1959239755, 2849803280, 3134783608, 3277273772, 3918479510, 4096592215, 6269567216, 6554547544, 7836959020, 8193184430, 9012502873, 13109095088, 15673918040, 16386368860, 18025005746, 31347836080, 32772737720, 36050011492, 45062514365, 65545475440, 72100022984, 90125028730, 144200045968, 180250057460, 360500114920, 721000229840]

約数ペア:

[(1, 721000229840), (2, 360500114920), (4, 180250057460), (5, 144200045968), (8, 90125028730), (10, 72100022984), (11, 65545475440), (16, 45062514365), (20, 36050011492), (22, 32772737720), (23, 31347836080), (40, 18025005746), (44, 16386368860), (46, 15673918040), (55, 13109095088), (80, 9012502873), (88, 8193184430), (92, 7836959020), (110, 6554547544), (115, 6269567216), (176, 4096592215), (184, 3918479510), (220, 3277273772), (230, 3134783608), (253, 2849803280), (368, 1959239755), (440, 1638636886), (460, 1567391804), (491, 1468432240), (506, 1424901640), (880, 819318443), (920, 783695902), (982, 734216120), (1012, 712450820), (1265, 569960656), (1840, 391847951), (1964, 367108060), (2024, 356225410), (2455, 293686448), (2530, 284980328), (3928, 183554030), (4048, 178112705), (4910, 146843224), (5060, 142490164), (5401, 133493840), (7856, 91777015), (9820, 73421612), (10120, 71245082), (10802, 66746920), (11293, 63844880), (19640, 36710806), (20240, 35622541), (21604, 33373460), (22586, 31922440), (27005, 26698768), (39280, 18355403), (43208, 16686730), (45172, 15961220), (54010, 13349384), (56465, 12768976), (72551, 9937840), (86416, 8343365), (90344, 7980610), (108020, 6674692), (112930, 6384488), (124223, 5804080), (145102, 4968920), (180688, 3990305), (216040, 3337346), (225860, 3192244), (248446, 2902040), (290204, 2484460), (362755, 1987568), (432080, 1668673), (451720, 1596122), (496892, 1451020), (580408, 1242230), (621115, 1160816), (725510, 993784), (798061, 903440)]