71465720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 164898720

約数和(自身を除く): 93433000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 113, 163, 194, 226, 326, 388, 452, 485, 565, 652, 776, 815, 904, 970, 1130, 1304, 1630, 1940, 2260, 3260, 3880, 4520, 6520, 10961, 15811, 18419, 21922, 31622, 36838, 43844, 54805, 63244, 73676, 79055, 87688, 92095, 109610, 126488, 147352, 158110, 184190, 219220, 316220, 368380, 438440, 632440, 736760, 1786643, 3573286, 7146572, 8933215, 14293144, 17866430, 35732860, 71465720]

約数ペア:

[(1, 71465720), (2, 35732860), (4, 17866430), (5, 14293144), (8, 8933215), (10, 7146572), (20, 3573286), (40, 1786643), (97, 736760), (113, 632440), (163, 438440), (194, 368380), (226, 316220), (326, 219220), (388, 184190), (452, 158110), (485, 147352), (565, 126488), (652, 109610), (776, 92095), (815, 87688), (904, 79055), (970, 73676), (1130, 63244), (1304, 54805), (1630, 43844), (1940, 36838), (2260, 31622), (3260, 21922), (3880, 18419), (4520, 15811), (6520, 10961)]