64631720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{55717}}^1$

素因数の和:55757

約数の個数: 32

約数和(自身を含む): 150438600

約数和(自身を除く): 85806880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 55717, 111434, 222868, 278585, 445736, 557170, 1114340, 1615793, 2228680, 3231586, 6463172, 8078965, 12926344, 16157930, 32315860, 64631720]

約数ペア:

[(1, 64631720), (2, 32315860), (4, 16157930), (5, 12926344), (8, 8078965), (10, 6463172), (20, 3231586), (29, 2228680), (40, 1615793), (58, 1114340), (116, 557170), (145, 445736), (232, 278585), (290, 222868), (580, 111434), (1160, 55717)]