191004020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{1289}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 416102400

約数和(自身を除く): 225098380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 239, 310, 478, 620, 956, 1195, 1289, 2390, 2578, 4780, 5156, 6445, 7409, 12890, 14818, 25780, 29636, 37045, 39959, 74090, 79918, 148180, 159836, 199795, 308071, 399590, 616142, 799180, 1232284, 1540355, 3080710, 6161420, 9550201, 19100402, 38200804, 47751005, 95502010, 191004020]

約数ペア:

[(1, 191004020), (2, 95502010), (4, 47751005), (5, 38200804), (10, 19100402), (20, 9550201), (31, 6161420), (62, 3080710), (124, 1540355), (155, 1232284), (239, 799180), (310, 616142), (478, 399590), (620, 308071), (956, 199795), (1195, 159836), (1289, 148180), (2390, 79918), (2578, 74090), (4780, 39959), (5156, 37045), (6445, 29636), (7409, 25780), (12890, 14818)]