720871520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 192

約数和(自身を含む): 1881169920

約数和(自身を除く): 1160298400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 71, 80, 89, 92, 115, 124, 142, 155, 160, 178, 184, 230, 248, 284, 310, 355, 356, 368, 445, 460, 496, 568, 620, 710, 712, 713, 736, 890, 920, 992, 1136, 1240, 1420, 1424, 1426, 1633, 1780, 1840, 2047, 2201, 2272, 2480, 2759, 2840, 2848, 2852, 3266, 3560, 3565, 3680, 4094, 4402, 4960, 5518, 5680, 5704, 6319, 6532, 7120, 7130, 8165, 8188, 8804, 10235, 11005, 11036, 11360, 11408, 12638, 13064, 13795, 14240, 14260, 16330, 16376, 17608, 20470, 22010, 22072, 22816, 25276, 26128, 27590, 28520, 31595, 32660, 32752, 35216, 40940, 44020, 44144, 50552, 50623, 52256, 55180, 57040, 63190, 63457, 65320, 65504, 70432, 81880, 88040, 88288, 101104, 101246, 110360, 114080, 126380, 126914, 130640, 145337, 163760, 176080, 195889, 202208, 202492, 220720, 252760, 253115, 253828, 261280, 290674, 317285, 327520, 352160, 391778, 404984, 441440, 505520, 506230, 507656, 581348, 634570, 726685, 783556, 809968, 979445, 1011040, 1012460, 1015312, 1162696, 1269140, 1453370, 1567112, 1619936, 1958890, 2024920, 2030624, 2325392, 2538280, 2906740, 3134224, 3917780, 4049840, 4505447, 4650784, 5076560, 5813480, 6268448, 7835560, 8099680, 9010894, 10153120, 11626960, 15671120, 18021788, 22527235, 23253920, 31342240, 36043576, 45054470, 72087152, 90108940, 144174304, 180217880, 360435760, 720871520]

約数ペア:

[(1, 720871520), (2, 360435760), (4, 180217880), (5, 144174304), (8, 90108940), (10, 72087152), (16, 45054470), (20, 36043576), (23, 31342240), (31, 23253920), (32, 22527235), (40, 18021788), (46, 15671120), (62, 11626960), (71, 10153120), (80, 9010894), (89, 8099680), (92, 7835560), (115, 6268448), (124, 5813480), (142, 5076560), (155, 4650784), (160, 4505447), (178, 4049840), (184, 3917780), (230, 3134224), (248, 2906740), (284, 2538280), (310, 2325392), (355, 2030624), (356, 2024920), (368, 1958890), (445, 1619936), (460, 1567112), (496, 1453370), (568, 1269140), (620, 1162696), (710, 1015312), (712, 1012460), (713, 1011040), (736, 979445), (890, 809968), (920, 783556), (992, 726685), (1136, 634570), (1240, 581348), (1420, 507656), (1424, 506230), (1426, 505520), (1633, 441440), (1780, 404984), (1840, 391778), (2047, 352160), (2201, 327520), (2272, 317285), (2480, 290674), (2759, 261280), (2840, 253828), (2848, 253115), (2852, 252760), (3266, 220720), (3560, 202492), (3565, 202208), (3680, 195889), (4094, 176080), (4402, 163760), (4960, 145337), (5518, 130640), (5680, 126914), (5704, 126380), (6319, 114080), (6532, 110360), (7120, 101246), (7130, 101104), (8165, 88288), (8188, 88040), (8804, 81880), (10235, 70432), (11005, 65504), (11036, 65320), (11360, 63457), (11408, 63190), (12638, 57040), (13064, 55180), (13795, 52256), (14240, 50623), (14260, 50552), (16330, 44144), (16376, 44020), (17608, 40940), (20470, 35216), (22010, 32752), (22072, 32660), (22816, 31595), (25276, 28520), (26128, 27590)]