3886405640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{19213}}^1$

素因数の和:19626

約数の個数: 64

約数和(自身を含む): 9441759600

約数和(自身を除く): 5555353960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 389, 520, 778, 1556, 1945, 3112, 3890, 5057, 7780, 10114, 15560, 19213, 20228, 25285, 38426, 40456, 50570, 76852, 96065, 101140, 153704, 192130, 202280, 249769, 384260, 499538, 768520, 999076, 1248845, 1998152, 2497690, 4995380, 7473857, 9990760, 14947714, 29895428, 37369285, 59790856, 74738570, 97160141, 149477140, 194320282, 298954280, 388640564, 485800705, 777281128, 971601410, 1943202820, 3886405640]

約数ペア:

[(1, 3886405640), (2, 1943202820), (4, 971601410), (5, 777281128), (8, 485800705), (10, 388640564), (13, 298954280), (20, 194320282), (26, 149477140), (40, 97160141), (52, 74738570), (65, 59790856), (104, 37369285), (130, 29895428), (260, 14947714), (389, 9990760), (520, 7473857), (778, 4995380), (1556, 2497690), (1945, 1998152), (3112, 1248845), (3890, 999076), (5057, 768520), (7780, 499538), (10114, 384260), (15560, 249769), (19213, 202280), (20228, 192130), (25285, 153704), (38426, 101140), (40456, 96065), (50570, 76852)]