19802.0000000

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 64

約数和(自身を含む): 8356608

約数和(自身を除く): 4078983

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 61, 75, 85, 125, 165, 183, 187, 255, 275, 305, 375, 425, 561, 671, 825, 915, 935, 1037, 1275, 1375, 1525, 2013, 2125, 2805, 3111, 3355, 4125, 4575, 4675, 5185, 6375, 7625, 10065, 11407, 14025, 15555, 16775, 22875, 23375, 25925, 34221, 50325, 57035, 70125, 77775, 83875, 129625, 171105, 251625, 285175, 388875, 855525, 1425875, 4277625]

約数ペア:

[(1, 4277625), (3, 1425875), (5, 855525), (11, 388875), (15, 285175), (17, 251625), (25, 171105), (33, 129625), (51, 83875), (55, 77775), (61, 70125), (75, 57035), (85, 50325), (125, 34221), (165, 25925), (183, 23375), (187, 22875), (255, 16775), (275, 15555), (305, 14025), (375, 11407), (425, 10065), (561, 7625), (671, 6375), (825, 5185), (915, 4675), (935, 4575), (1037, 4125), (1275, 3355), (1375, 3111), (1525, 2805), (2013, 2125)]