20031375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 41094144

約数和(自身を除く): 21062769

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 125, 175, 195, 273, 325, 375, 455, 525, 587, 875, 975, 1365, 1625, 1761, 2275, 2625, 2935, 4109, 4875, 6825, 7631, 8805, 11375, 12327, 14675, 20545, 22893, 34125, 38155, 44025, 53417, 61635, 73375, 102725, 114465, 160251, 190775, 220125, 267085, 308175, 513625, 572325, 801255, 953875, 1335425, 1540875, 2861625, 4006275, 6677125, 20031375]

約数ペア:

[(1, 20031375), (3, 6677125), (5, 4006275), (7, 2861625), (13, 1540875), (15, 1335425), (21, 953875), (25, 801255), (35, 572325), (39, 513625), (65, 308175), (75, 267085), (91, 220125), (105, 190775), (125, 160251), (175, 114465), (195, 102725), (273, 73375), (325, 61635), (375, 53417), (455, 44025), (525, 38155), (587, 34125), (875, 22893), (975, 20545), (1365, 14675), (1625, 12327), (1761, 11375), (2275, 8805), (2625, 7631), (2935, 6825), (4109, 4875)]