19538650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 38792160

約数和(自身を除く): 19253510

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 131, 157, 190, 262, 314, 475, 655, 785, 950, 1310, 1570, 2489, 2983, 3275, 3925, 4978, 5966, 6550, 7850, 12445, 14915, 20567, 24890, 29830, 41134, 62225, 74575, 102835, 124450, 149150, 205670, 390773, 514175, 781546, 1028350, 1953865, 3907730, 9769325, 19538650]

約数ペア:

[(1, 19538650), (2, 9769325), (5, 3907730), (10, 1953865), (19, 1028350), (25, 781546), (38, 514175), (50, 390773), (95, 205670), (131, 149150), (157, 124450), (190, 102835), (262, 74575), (314, 62225), (475, 41134), (655, 29830), (785, 24890), (950, 20567), (1310, 14915), (1570, 12445), (2489, 7850), (2983, 6550), (3275, 5966), (3925, 4978)]