408309680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 1010667456

約数和(自身を除く): 602357776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 113, 124, 155, 188, 226, 235, 248, 310, 376, 452, 470, 496, 565, 620, 752, 904, 940, 961, 1130, 1240, 1457, 1808, 1880, 1922, 2260, 2480, 2914, 3503, 3760, 3844, 4520, 4805, 5311, 5828, 7006, 7285, 7688, 9040, 9610, 10622, 11656, 14012, 14570, 15376, 17515, 19220, 21244, 23312, 26555, 28024, 29140, 35030, 38440, 42488, 45167, 53110, 56048, 58280, 70060, 76880, 84976, 90334, 106220, 108593, 116560, 140120, 164641, 180668, 212440, 217186, 225835, 280240, 329282, 361336, 424880, 434372, 451670, 542965, 658564, 722672, 823205, 868744, 903340, 1085930, 1317128, 1646410, 1737488, 1806680, 2171860, 2634256, 3292820, 3613360, 4343720, 5103871, 6585640, 8687440, 10207742, 13171280, 20415484, 25519355, 40830968, 51038710, 81661936, 102077420, 204154840, 408309680]

約数ペア:

[(1, 408309680), (2, 204154840), (4, 102077420), (5, 81661936), (8, 51038710), (10, 40830968), (16, 25519355), (20, 20415484), (31, 13171280), (40, 10207742), (47, 8687440), (62, 6585640), (80, 5103871), (94, 4343720), (113, 3613360), (124, 3292820), (155, 2634256), (188, 2171860), (226, 1806680), (235, 1737488), (248, 1646410), (310, 1317128), (376, 1085930), (452, 903340), (470, 868744), (496, 823205), (565, 722672), (620, 658564), (752, 542965), (904, 451670), (940, 434372), (961, 424880), (1130, 361336), (1240, 329282), (1457, 280240), (1808, 225835), (1880, 217186), (1922, 212440), (2260, 180668), (2480, 164641), (2914, 140120), (3503, 116560), (3760, 108593), (3844, 106220), (4520, 90334), (4805, 84976), (5311, 76880), (5828, 70060), (7006, 58280), (7285, 56048), (7688, 53110), (9040, 45167), (9610, 42488), (10622, 38440), (11656, 35030), (14012, 29140), (14570, 28024), (15376, 26555), (17515, 23312), (19220, 21244)]