261893890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{6449}}^1$

素因数の和:6618

約数の個数: 32

約数和(自身を含む): 490406400

約数和(自身を除く): 228512510

約数列:

[1, 2, 5, 10, 31, 62, 131, 155, 262, 310, 655, 1310, 4061, 6449, 8122, 12898, 20305, 32245, 40610, 64490, 199919, 399838, 844819, 999595, 1689638, 1999190, 4224095, 8448190, 26189389, 52378778, 130946945, 261893890]

約数ペア:

[(1, 261893890), (2, 130946945), (5, 52378778), (10, 26189389), (31, 8448190), (62, 4224095), (131, 1999190), (155, 1689638), (262, 999595), (310, 844819), (655, 399838), (1310, 199919), (4061, 64490), (6449, 40610), (8122, 32245), (12898, 20305)]