72420908

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 148948800

約数和(自身を除く): 76527892

約数列:

[1, 2, 4, 7, 14, 28, 61, 109, 122, 218, 244, 389, 427, 436, 763, 778, 854, 1526, 1556, 1708, 2723, 3052, 5446, 6649, 10892, 13298, 23729, 26596, 42401, 46543, 47458, 84802, 93086, 94916, 166103, 169604, 186172, 296807, 332206, 593614, 664412, 1187228, 2586461, 5172922, 10345844, 18105227, 36210454, 72420908]

約数ペア:

[(1, 72420908), (2, 36210454), (4, 18105227), (7, 10345844), (14, 5172922), (28, 2586461), (61, 1187228), (109, 664412), (122, 593614), (218, 332206), (244, 296807), (389, 186172), (427, 169604), (436, 166103), (763, 94916), (778, 93086), (854, 84802), (1526, 47458), (1556, 46543), (1708, 42401), (2723, 26596), (3052, 23729), (5446, 13298), (6649, 10892)]