78189440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:620

約数の個数: 128

約数和(自身を含む): 220907520

約数和(自身を除く): 142718080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 563, 620, 640, 868, 896, 992, 1085, 1120, 1126, 1240, 1736, 1984, 2170, 2240, 2252, 2480, 2815, 3472, 3941, 3968, 4340, 4480, 4504, 4960, 5630, 6944, 7882, 8680, 9008, 9920, 11260, 13888, 15764, 17360, 17453, 18016, 19705, 19840, 22520, 27776, 31528, 34720, 34906, 36032, 39410, 45040, 63056, 69440, 69812, 72064, 78820, 87265, 90080, 122171, 126112, 138880, 139624, 157640, 174530, 180160, 244342, 252224, 279248, 315280, 349060, 360320, 488684, 504448, 558496, 610855, 630560, 698120, 977368, 1116992, 1221710, 1261120, 1396240, 1954736, 2233984, 2443420, 2522240, 2792480, 3909472, 4886840, 5584960, 7818944, 9773680, 11169920, 15637888, 19547360, 39094720, 78189440]

約数ペア:

[(1, 78189440), (2, 39094720), (4, 19547360), (5, 15637888), (7, 11169920), (8, 9773680), (10, 7818944), (14, 5584960), (16, 4886840), (20, 3909472), (28, 2792480), (31, 2522240), (32, 2443420), (35, 2233984), (40, 1954736), (56, 1396240), (62, 1261120), (64, 1221710), (70, 1116992), (80, 977368), (112, 698120), (124, 630560), (128, 610855), (140, 558496), (155, 504448), (160, 488684), (217, 360320), (224, 349060), (248, 315280), (280, 279248), (310, 252224), (320, 244342), (434, 180160), (448, 174530), (496, 157640), (560, 139624), (563, 138880), (620, 126112), (640, 122171), (868, 90080), (896, 87265), (992, 78820), (1085, 72064), (1120, 69812), (1126, 69440), (1240, 63056), (1736, 45040), (1984, 39410), (2170, 36032), (2240, 34906), (2252, 34720), (2480, 31528), (2815, 27776), (3472, 22520), (3941, 19840), (3968, 19705), (4340, 18016), (4480, 17453), (4504, 17360), (4960, 15764), (5630, 13888), (6944, 11260), (7882, 9920), (8680, 9008)]