620908691

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 705788160

約数和(自身を除く): 84879469

約数列:

[1, 13, 43, 61, 131, 139, 559, 793, 1703, 1807, 2623, 5633, 5977, 7991, 8479, 18209, 34099, 73229, 77701, 103883, 110227, 236717, 343613, 364597, 782987, 1110749, 4466969, 4739761, 10178831, 14439737, 47762207, 620908691]

約数ペア:

[(1, 620908691), (13, 47762207), (43, 14439737), (61, 10178831), (131, 4739761), (139, 4466969), (559, 1110749), (793, 782987), (1703, 364597), (1807, 343613), (2623, 236717), (5633, 110227), (5977, 103883), (7991, 77701), (8479, 73229), (18209, 34099)]