1640443375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 2291328000

約数和(自身を除く): 650884625

約数列:

[1, 5, 19, 23, 25, 59, 95, 115, 125, 295, 437, 475, 509, 575, 1121, 1357, 1475, 2185, 2375, 2545, 2875, 5605, 6785, 7375, 9671, 10925, 11707, 12725, 25783, 28025, 30031, 33925, 48355, 54625, 58535, 63625, 128915, 140125, 150155, 169625, 222433, 241775, 292675, 570589, 644575, 690713, 750775, 1112165, 1208875, 1463375, 2852945, 3222875, 3453565, 3753875, 5560825, 13123547, 14264725, 17267825, 27804125, 65617735, 71323625, 86339125, 328088675, 1640443375]

約数ペア:

[(1, 1640443375), (5, 328088675), (19, 86339125), (23, 71323625), (25, 65617735), (59, 27804125), (95, 17267825), (115, 14264725), (125, 13123547), (295, 5560825), (437, 3753875), (475, 3453565), (509, 3222875), (575, 2852945), (1121, 1463375), (1357, 1208875), (1475, 1112165), (2185, 750775), (2375, 690713), (2545, 644575), (2875, 570589), (5605, 292675), (6785, 241775), (7375, 222433), (9671, 169625), (10925, 150155), (11707, 140125), (12725, 128915), (25783, 63625), (28025, 58535), (30031, 54625), (33925, 48355)]