1638460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 3749760

約数和(自身を除く): 2111300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 79, 85, 122, 158, 170, 244, 305, 316, 340, 395, 610, 790, 1037, 1220, 1343, 1580, 2074, 2686, 4148, 4819, 5185, 5372, 6715, 9638, 10370, 13430, 19276, 20740, 24095, 26860, 48190, 81923, 96380, 163846, 327692, 409615, 819230, 1638460]

約数ペア:

[(1, 1638460), (2, 819230), (4, 409615), (5, 327692), (10, 163846), (17, 96380), (20, 81923), (34, 48190), (61, 26860), (68, 24095), (79, 20740), (85, 19276), (122, 13430), (158, 10370), (170, 9638), (244, 6715), (305, 5372), (316, 5185), (340, 4819), (395, 4148), (610, 2686), (790, 2074), (1037, 1580), (1220, 1343)]