64901720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6569}}^1$

素因数の和:6612

約数の個数: 64

約数和(自身を含む): 165564000

約数和(自身を除く): 100662280

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 6569, 9880, 13138, 26276, 32845, 52552, 65690, 85397, 124811, 131380, 170794, 249622, 262760, 341588, 426985, 499244, 624055, 683176, 853970, 998488, 1248110, 1622543, 1707940, 2496220, 3245086, 3415880, 4992440, 6490172, 8112715, 12980344, 16225430, 32450860, 64901720]

約数ペア:

[(1, 64901720), (2, 32450860), (4, 16225430), (5, 12980344), (8, 8112715), (10, 6490172), (13, 4992440), (19, 3415880), (20, 3245086), (26, 2496220), (38, 1707940), (40, 1622543), (52, 1248110), (65, 998488), (76, 853970), (95, 683176), (104, 624055), (130, 499244), (152, 426985), (190, 341588), (247, 262760), (260, 249622), (380, 170794), (494, 131380), (520, 124811), (760, 85397), (988, 65690), (1235, 52552), (1976, 32845), (2470, 26276), (4940, 13138), (6569, 9880)]