65432180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^2$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 154617120

約数和(自身を除く): 89184940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 71, 110, 118, 142, 220, 236, 284, 295, 355, 590, 649, 710, 781, 1180, 1298, 1420, 1562, 2596, 3124, 3245, 3905, 4189, 5041, 6490, 7810, 8378, 10082, 12980, 15620, 16756, 20164, 20945, 25205, 41890, 46079, 50410, 55451, 83780, 92158, 100820, 110902, 184316, 221804, 230395, 277255, 297419, 460790, 554510, 594838, 921580, 1109020, 1189676, 1487095, 2974190, 3271609, 5948380, 6543218, 13086436, 16358045, 32716090, 65432180]

約数ペア:

[(1, 65432180), (2, 32716090), (4, 16358045), (5, 13086436), (10, 6543218), (11, 5948380), (20, 3271609), (22, 2974190), (44, 1487095), (55, 1189676), (59, 1109020), (71, 921580), (110, 594838), (118, 554510), (142, 460790), (220, 297419), (236, 277255), (284, 230395), (295, 221804), (355, 184316), (590, 110902), (649, 100820), (710, 92158), (781, 83780), (1180, 55451), (1298, 50410), (1420, 46079), (1562, 41890), (2596, 25205), (3124, 20945), (3245, 20164), (3905, 16756), (4189, 15620), (5041, 12980), (6490, 10082), (7810, 8378)]