661789380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:818

約数の個数: 192

約数和(自身を含む): 2250178560

約数和(自身を除く): 1588389180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 127, 133, 140, 190, 210, 228, 254, 266, 285, 380, 381, 399, 420, 508, 532, 570, 635, 653, 665, 762, 798, 889, 1140, 1270, 1306, 1330, 1524, 1596, 1778, 1905, 1959, 1995, 2413, 2540, 2612, 2660, 2667, 3265, 3556, 3810, 3918, 3990, 4445, 4571, 4826, 5334, 6530, 7239, 7620, 7836, 7980, 8890, 9142, 9652, 9795, 10668, 12065, 12407, 13060, 13335, 13713, 14478, 16891, 17780, 18284, 19590, 22855, 24130, 24814, 26670, 27426, 28956, 33782, 36195, 37221, 39180, 45710, 48260, 49628, 50673, 53340, 54852, 62035, 67564, 68565, 72390, 74442, 82931, 84455, 86849, 91420, 101346, 124070, 137130, 144780, 148884, 165862, 168910, 173698, 186105, 202692, 248140, 248793, 253365, 260547, 274260, 331724, 337820, 347396, 372210, 414655, 434245, 497586, 506730, 521094, 580517, 744420, 829310, 868490, 995172, 1013460, 1042188, 1161034, 1243965, 1302735, 1575689, 1658620, 1736980, 1741551, 2322068, 2487930, 2605470, 2902585, 3151378, 3483102, 4727067, 4975860, 5210940, 5805170, 6302756, 6966204, 7878445, 8707755, 9454134, 11029823, 11610340, 15756890, 17415510, 18908268, 22059646, 23635335, 31513780, 33089469, 34831020, 44119292, 47270670, 55149115, 66178938, 94541340, 110298230, 132357876, 165447345, 220596460, 330894690, 661789380]

約数ペア:

[(1, 661789380), (2, 330894690), (3, 220596460), (4, 165447345), (5, 132357876), (6, 110298230), (7, 94541340), (10, 66178938), (12, 55149115), (14, 47270670), (15, 44119292), (19, 34831020), (20, 33089469), (21, 31513780), (28, 23635335), (30, 22059646), (35, 18908268), (38, 17415510), (42, 15756890), (57, 11610340), (60, 11029823), (70, 9454134), (76, 8707755), (84, 7878445), (95, 6966204), (105, 6302756), (114, 5805170), (127, 5210940), (133, 4975860), (140, 4727067), (190, 3483102), (210, 3151378), (228, 2902585), (254, 2605470), (266, 2487930), (285, 2322068), (380, 1741551), (381, 1736980), (399, 1658620), (420, 1575689), (508, 1302735), (532, 1243965), (570, 1161034), (635, 1042188), (653, 1013460), (665, 995172), (762, 868490), (798, 829310), (889, 744420), (1140, 580517), (1270, 521094), (1306, 506730), (1330, 497586), (1524, 434245), (1596, 414655), (1778, 372210), (1905, 347396), (1959, 337820), (1995, 331724), (2413, 274260), (2540, 260547), (2612, 253365), (2660, 248793), (2667, 248140), (3265, 202692), (3556, 186105), (3810, 173698), (3918, 168910), (3990, 165862), (4445, 148884), (4571, 144780), (4826, 137130), (5334, 124070), (6530, 101346), (7239, 91420), (7620, 86849), (7836, 84455), (7980, 82931), (8890, 74442), (9142, 72390), (9652, 68565), (9795, 67564), (10668, 62035), (12065, 54852), (12407, 53340), (13060, 50673), (13335, 49628), (13713, 48260), (14478, 45710), (16891, 39180), (17780, 37221), (18284, 36195), (19590, 33782), (22855, 28956), (24130, 27426), (24814, 26670)]