28604120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 68968800

約数和(自身を除く): 40364680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 610, 617, 760, 1159, 1220, 1234, 2318, 2440, 2468, 3085, 4636, 4936, 5795, 6170, 9272, 11590, 11723, 12340, 23180, 23446, 24680, 37637, 46360, 46892, 58615, 75274, 93784, 117230, 150548, 188185, 234460, 301096, 376370, 468920, 715103, 752740, 1430206, 1505480, 2860412, 3575515, 5720824, 7151030, 14302060, 28604120]

約数ペア:

[(1, 28604120), (2, 14302060), (4, 7151030), (5, 5720824), (8, 3575515), (10, 2860412), (19, 1505480), (20, 1430206), (38, 752740), (40, 715103), (61, 468920), (76, 376370), (95, 301096), (122, 234460), (152, 188185), (190, 150548), (244, 117230), (305, 93784), (380, 75274), (488, 58615), (610, 46892), (617, 46360), (760, 37637), (1159, 24680), (1220, 23446), (1234, 23180), (2318, 12340), (2440, 11723), (2468, 11590), (3085, 9272), (4636, 6170), (4936, 5795)]