19884043875

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{64901}}^1$

素因数の和:64981

約数の個数: 64

約数和(自身を含む): 35638986240

約数和(自身を除く): 15754942365

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 125, 129, 215, 285, 375, 475, 645, 817, 1075, 1425, 2375, 2451, 3225, 4085, 5375, 7125, 12255, 16125, 20425, 61275, 64901, 102125, 194703, 306375, 324505, 973515, 1233119, 1622525, 2790743, 3699357, 4867575, 6165595, 8112625, 8372229, 13953715, 18496785, 24337875, 30827975, 41861145, 53024117, 69768575, 92483925, 154139875, 159072351, 209305725, 265120585, 348842875, 462419625, 795361755, 1046528625, 1325602925, 3976808775, 6628014625, 19884043875]

約数ペア:

[(1, 19884043875), (3, 6628014625), (5, 3976808775), (15, 1325602925), (19, 1046528625), (25, 795361755), (43, 462419625), (57, 348842875), (75, 265120585), (95, 209305725), (125, 159072351), (129, 154139875), (215, 92483925), (285, 69768575), (375, 53024117), (475, 41861145), (645, 30827975), (817, 24337875), (1075, 18496785), (1425, 13953715), (2375, 8372229), (2451, 8112625), (3225, 6165595), (4085, 4867575), (5375, 3699357), (7125, 2790743), (12255, 1622525), (16125, 1233119), (20425, 973515), (61275, 324505), (64901, 306375), (102125, 194703)]