60780980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1668

約数の個数: 48

約数和(自身を含む): 138426960

約数和(自身を除く): 77645980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1489, 1570, 2041, 2978, 3140, 4082, 5956, 7445, 8164, 10205, 14890, 19357, 20410, 29780, 38714, 40820, 77428, 96785, 193570, 233773, 387140, 467546, 935092, 1168865, 2337730, 3039049, 4675460, 6078098, 12156196, 15195245, 30390490, 60780980]

約数ペア:

[(1, 60780980), (2, 30390490), (4, 15195245), (5, 12156196), (10, 6078098), (13, 4675460), (20, 3039049), (26, 2337730), (52, 1168865), (65, 935092), (130, 467546), (157, 387140), (260, 233773), (314, 193570), (628, 96785), (785, 77428), (1489, 40820), (1570, 38714), (2041, 29780), (2978, 20410), (3140, 19357), (4082, 14890), (5956, 10205), (7445, 8164)]