51039625

素因数分解:

$5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:683

約数の個数: 48

約数和(自身を含む): 79921296

約数和(自身を除く): 28881671

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 125, 175, 245, 325, 455, 637, 641, 875, 1225, 1625, 2275, 3185, 3205, 4487, 6125, 8333, 11375, 15925, 16025, 22435, 31409, 41665, 58331, 79625, 80125, 112175, 157045, 208325, 291655, 408317, 560875, 785225, 1041625, 1458275, 2041585, 3926125, 7291375, 10207925, 51039625]

約数ペア:

[(1, 51039625), (5, 10207925), (7, 7291375), (13, 3926125), (25, 2041585), (35, 1458275), (49, 1041625), (65, 785225), (91, 560875), (125, 408317), (175, 291655), (245, 208325), (325, 157045), (455, 112175), (637, 80125), (641, 79625), (875, 58331), (1225, 41665), (1625, 31409), (2275, 22435), (3185, 16025), (3205, 15925), (4487, 11375), (6125, 8333)]