72021625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 105670656

約数和(自身を除く): 33649031

約数列:

[1, 5, 13, 23, 25, 41, 47, 65, 115, 125, 205, 235, 299, 325, 533, 575, 611, 943, 1025, 1081, 1175, 1495, 1625, 1927, 2665, 2875, 3055, 4715, 5125, 5405, 5875, 7475, 9635, 12259, 13325, 14053, 15275, 23575, 25051, 27025, 37375, 44321, 48175, 61295, 66625, 70265, 76375, 117875, 125255, 135125, 221605, 240875, 306475, 351325, 576173, 626275, 1108025, 1532375, 1756625, 2880865, 3131375, 5540125, 14404325, 72021625]

約数ペア:

[(1, 72021625), (5, 14404325), (13, 5540125), (23, 3131375), (25, 2880865), (41, 1756625), (47, 1532375), (65, 1108025), (115, 626275), (125, 576173), (205, 351325), (235, 306475), (299, 240875), (325, 221605), (533, 135125), (575, 125255), (611, 117875), (943, 76375), (1025, 70265), (1081, 66625), (1175, 61295), (1495, 48175), (1625, 44321), (1927, 37375), (2665, 27025), (2875, 25051), (3055, 23575), (4715, 15275), (5125, 14053), (5405, 13325), (5875, 12259), (7475, 9635)]