880846940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:1094

約数の個数: 48

約数和(自身を含む): 1865959200

約数和(自身を除く): 985112260

約数列:

[1, 2, 4, 5, 10, 20, 257, 409, 419, 514, 818, 838, 1028, 1285, 1636, 1676, 2045, 2095, 2570, 4090, 4190, 5140, 8180, 8380, 105113, 107683, 171371, 210226, 215366, 342742, 420452, 430732, 525565, 538415, 685484, 856855, 1051130, 1076830, 1713710, 2102260, 2153660, 3427420, 44042347, 88084694, 176169388, 220211735, 440423470, 880846940]

約数ペア:

[(1, 880846940), (2, 440423470), (4, 220211735), (5, 176169388), (10, 88084694), (20, 44042347), (257, 3427420), (409, 2153660), (419, 2102260), (514, 1713710), (818, 1076830), (838, 1051130), (1028, 856855), (1285, 685484), (1636, 538415), (1676, 525565), (2045, 430732), (2095, 420452), (2570, 342742), (4090, 215366), (4190, 210226), (5140, 171371), (8180, 107683), (8380, 105113)]