678666880

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:562

約数の個数: 128

約数和(自身を含む): 1699891200

約数和(自身を除く): 1021224320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 248, 310, 316, 320, 395, 433, 496, 620, 632, 640, 790, 866, 992, 1240, 1264, 1580, 1732, 1984, 2165, 2449, 2480, 2528, 3160, 3464, 3968, 4330, 4898, 4960, 5056, 6320, 6928, 8660, 9796, 9920, 10112, 12245, 12640, 13423, 13856, 17320, 19592, 19840, 24490, 25280, 26846, 27712, 34207, 34640, 39184, 48980, 50560, 53692, 55424, 67115, 68414, 69280, 78368, 97960, 107384, 134230, 136828, 138560, 156736, 171035, 195920, 214768, 268460, 273656, 277120, 313472, 342070, 391840, 429536, 536920, 547312, 684140, 783680, 859072, 1060417, 1073840, 1094624, 1368280, 1567360, 1718144, 2120834, 2147680, 2189248, 2736560, 4241668, 4295360, 4378496, 5302085, 5473120, 8483336, 8590720, 10604170, 10946240, 16966672, 21208340, 21892480, 33933344, 42416680, 67866688, 84833360, 135733376, 169666720, 339333440, 678666880]

約数ペア:

[(1, 678666880), (2, 339333440), (4, 169666720), (5, 135733376), (8, 84833360), (10, 67866688), (16, 42416680), (20, 33933344), (31, 21892480), (32, 21208340), (40, 16966672), (62, 10946240), (64, 10604170), (79, 8590720), (80, 8483336), (124, 5473120), (128, 5302085), (155, 4378496), (158, 4295360), (160, 4241668), (248, 2736560), (310, 2189248), (316, 2147680), (320, 2120834), (395, 1718144), (433, 1567360), (496, 1368280), (620, 1094624), (632, 1073840), (640, 1060417), (790, 859072), (866, 783680), (992, 684140), (1240, 547312), (1264, 536920), (1580, 429536), (1732, 391840), (1984, 342070), (2165, 313472), (2449, 277120), (2480, 273656), (2528, 268460), (3160, 214768), (3464, 195920), (3968, 171035), (4330, 156736), (4898, 138560), (4960, 136828), (5056, 134230), (6320, 107384), (6928, 97960), (8660, 78368), (9796, 69280), (9920, 68414), (10112, 67115), (12245, 55424), (12640, 53692), (13423, 50560), (13856, 48980), (17320, 39184), (19592, 34640), (19840, 34207), (24490, 27712), (25280, 26846)]