2698640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 80

約数和(自身を含む): 7380480

約数和(自身を除く): 4681840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 79, 80, 112, 122, 140, 158, 244, 280, 305, 316, 395, 427, 488, 553, 560, 610, 632, 790, 854, 976, 1106, 1220, 1264, 1580, 1708, 2135, 2212, 2440, 2765, 3160, 3416, 4270, 4424, 4819, 4880, 5530, 6320, 6832, 8540, 8848, 9638, 11060, 17080, 19276, 22120, 24095, 33733, 34160, 38552, 44240, 48190, 67466, 77104, 96380, 134932, 168665, 192760, 269864, 337330, 385520, 539728, 674660, 1349320, 2698640]

約数ペア:

[(1, 2698640), (2, 1349320), (4, 674660), (5, 539728), (7, 385520), (8, 337330), (10, 269864), (14, 192760), (16, 168665), (20, 134932), (28, 96380), (35, 77104), (40, 67466), (56, 48190), (61, 44240), (70, 38552), (79, 34160), (80, 33733), (112, 24095), (122, 22120), (140, 19276), (158, 17080), (244, 11060), (280, 9638), (305, 8848), (316, 8540), (395, 6832), (427, 6320), (488, 5530), (553, 4880), (560, 4819), (610, 4424), (632, 4270), (790, 3416), (854, 3160), (976, 2765), (1106, 2440), (1220, 2212), (1264, 2135), (1580, 1708)]