19394475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 34209120

約数和(自身を除く): 14814645

約数列:

[1, 3, 5, 15, 25, 29, 37, 75, 87, 111, 145, 185, 241, 435, 555, 723, 725, 925, 1073, 1205, 2175, 2775, 3219, 3615, 5365, 6025, 6989, 8917, 16095, 18075, 20967, 26751, 26825, 34945, 44585, 80475, 104835, 133755, 174725, 222925, 258593, 524175, 668775, 775779, 1292965, 3878895, 6464825, 19394475]

約数ペア:

[(1, 19394475), (3, 6464825), (5, 3878895), (15, 1292965), (25, 775779), (29, 668775), (37, 524175), (75, 258593), (87, 222925), (111, 174725), (145, 133755), (185, 104835), (241, 80475), (435, 44585), (555, 34945), (723, 26825), (725, 26751), (925, 20967), (1073, 18075), (1205, 16095), (2175, 8917), (2775, 6989), (3219, 6025), (3615, 5365)]