87707320

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3389}}^1$

素因数の和:4047

約数の個数: 32

約数和(自身を含む): 197704800

約数和(自身を除く): 109997480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 3389, 5176, 6470, 6778, 12940, 13556, 16945, 25880, 27112, 33890, 67780, 135560, 2192683, 4385366, 8770732, 10963415, 17541464, 21926830, 43853660, 87707320]

約数ペア:

[(1, 87707320), (2, 43853660), (4, 21926830), (5, 17541464), (8, 10963415), (10, 8770732), (20, 4385366), (40, 2192683), (647, 135560), (1294, 67780), (2588, 33890), (3235, 27112), (3389, 25880), (5176, 16945), (6470, 13556), (6778, 12940)]