390996840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{953}}^1$

素因数の和:1243

約数の個数: 128

約数和(自身を含む): 1269354240

約数和(自身を除く): 878357400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 263, 312, 390, 520, 526, 780, 789, 953, 1052, 1315, 1560, 1578, 1906, 2104, 2630, 2859, 3156, 3419, 3812, 3945, 4765, 5260, 5718, 6312, 6838, 7624, 7890, 9530, 10257, 10520, 11436, 12389, 13676, 14295, 15780, 17095, 19060, 20514, 22872, 24778, 27352, 28590, 31560, 34190, 37167, 38120, 41028, 49556, 51285, 57180, 61945, 68380, 74334, 82056, 99112, 102570, 114360, 123890, 136760, 148668, 185835, 205140, 247780, 250639, 297336, 371670, 410280, 495560, 501278, 743340, 751917, 1002556, 1253195, 1486680, 1503834, 2005112, 2506390, 3007668, 3258307, 3759585, 5012780, 6015336, 6516614, 7519170, 9774921, 10025560, 13033228, 15038340, 16291535, 19549842, 26066456, 30076680, 32583070, 39099684, 48874605, 65166140, 78199368, 97749210, 130332280, 195498420, 390996840]

約数ペア:

[(1, 390996840), (2, 195498420), (3, 130332280), (4, 97749210), (5, 78199368), (6, 65166140), (8, 48874605), (10, 39099684), (12, 32583070), (13, 30076680), (15, 26066456), (20, 19549842), (24, 16291535), (26, 15038340), (30, 13033228), (39, 10025560), (40, 9774921), (52, 7519170), (60, 6516614), (65, 6015336), (78, 5012780), (104, 3759585), (120, 3258307), (130, 3007668), (156, 2506390), (195, 2005112), (260, 1503834), (263, 1486680), (312, 1253195), (390, 1002556), (520, 751917), (526, 743340), (780, 501278), (789, 495560), (953, 410280), (1052, 371670), (1315, 297336), (1560, 250639), (1578, 247780), (1906, 205140), (2104, 185835), (2630, 148668), (2859, 136760), (3156, 123890), (3419, 114360), (3812, 102570), (3945, 99112), (4765, 82056), (5260, 74334), (5718, 68380), (6312, 61945), (6838, 57180), (7624, 51285), (7890, 49556), (9530, 41028), (10257, 38120), (10520, 37167), (11436, 34190), (12389, 31560), (13676, 28590), (14295, 27352), (15780, 24778), (17095, 22872), (19060, 20514)]