80287220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2833}}^1$

素因数の和:2964

約数の個数: 48

約数和(自身を含む): 183303120

約数和(自身を除く): 103015900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2833, 2834, 5666, 5668, 7085, 11332, 14165, 14170, 28330, 28340, 36829, 56660, 73658, 147316, 184145, 308797, 368290, 617594, 736580, 1235188, 1543985, 3087970, 4014361, 6175940, 8028722, 16057444, 20071805, 40143610, 80287220]

約数ペア:

[(1, 80287220), (2, 40143610), (4, 20071805), (5, 16057444), (10, 8028722), (13, 6175940), (20, 4014361), (26, 3087970), (52, 1543985), (65, 1235188), (109, 736580), (130, 617594), (218, 368290), (260, 308797), (436, 184145), (545, 147316), (1090, 73658), (1417, 56660), (2180, 36829), (2833, 28340), (2834, 28330), (5666, 14170), (5668, 14165), (7085, 11332)]