961728625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 1422779904

約数和(自身を除く): 461051279

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 173, 275, 311, 325, 715, 865, 1375, 1555, 1625, 1903, 2249, 3421, 3575, 4043, 4325, 7775, 9515, 11245, 17105, 17875, 20215, 21625, 24739, 38875, 44473, 47575, 53803, 56225, 85525, 101075, 123695, 222365, 237875, 269015, 281125, 427625, 505375, 591833, 618475, 699439, 1111825, 1345075, 2959165, 3092375, 3497195, 5559125, 6725375, 7693829, 14795825, 17485975, 38469145, 73979125, 87429875, 192345725, 961728625]

約数ペア:

[(1, 961728625), (5, 192345725), (11, 87429875), (13, 73979125), (25, 38469145), (55, 17485975), (65, 14795825), (125, 7693829), (143, 6725375), (173, 5559125), (275, 3497195), (311, 3092375), (325, 2959165), (715, 1345075), (865, 1111825), (1375, 699439), (1555, 618475), (1625, 591833), (1903, 505375), (2249, 427625), (3421, 281125), (3575, 269015), (4043, 237875), (4325, 222365), (7775, 123695), (9515, 101075), (11245, 85525), (17105, 56225), (17875, 53803), (20215, 47575), (21625, 44473), (24739, 38875)]