20953097495

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{38783}}^1$

素因数の和:38876

約数の個数: 48

約数和(自身を含む): 29711646720

約数和(自身を除く): 8758549225

約数列:

[1, 5, 11, 19, 47, 55, 95, 121, 209, 235, 517, 605, 893, 1045, 2299, 2585, 4465, 5687, 9823, 11495, 28435, 38783, 49115, 108053, 193915, 426613, 540265, 736877, 1822801, 2133065, 3684385, 4692743, 8105647, 9114005, 20050811, 23463715, 34633219, 40528235, 89162117, 100254055, 173166095, 220558921, 380965409, 445810585, 1102794605, 1904827045, 4190619499, 20953097495]

約数ペア:

[(1, 20953097495), (5, 4190619499), (11, 1904827045), (19, 1102794605), (47, 445810585), (55, 380965409), (95, 220558921), (121, 173166095), (209, 100254055), (235, 89162117), (517, 40528235), (605, 34633219), (893, 23463715), (1045, 20050811), (2299, 9114005), (2585, 8105647), (4465, 4692743), (5687, 3684385), (9823, 2133065), (11495, 1822801), (28435, 736877), (38783, 540265), (49115, 426613), (108053, 193915)]