20717991610

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1\times {\mathrm{2549}}^1$

素因数の和:2911

約数の個数: 64

約数和(自身を含む): 38987827200

約数和(自身を除く): 18269835590

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 167, 310, 314, 334, 785, 835, 1570, 1670, 2549, 4867, 5098, 5177, 9734, 10354, 12745, 24335, 25490, 25885, 26219, 48670, 51770, 52438, 79019, 131095, 158038, 262190, 395095, 400193, 425683, 790190, 800386, 812789, 851366, 1625578, 2000965, 2128415, 4001930, 4063945, 4256830, 8127890, 12405983, 13196173, 24811966, 26392346, 62029915, 65980865, 66832231, 124059830, 131961730, 133664462, 334161155, 668322310, 2071799161, 4143598322, 10358995805, 20717991610]

約数ペア:

[(1, 20717991610), (2, 10358995805), (5, 4143598322), (10, 2071799161), (31, 668322310), (62, 334161155), (155, 133664462), (157, 131961730), (167, 124059830), (310, 66832231), (314, 65980865), (334, 62029915), (785, 26392346), (835, 24811966), (1570, 13196173), (1670, 12405983), (2549, 8127890), (4867, 4256830), (5098, 4063945), (5177, 4001930), (9734, 2128415), (10354, 2000965), (12745, 1625578), (24335, 851366), (25490, 812789), (25885, 800386), (26219, 790190), (48670, 425683), (51770, 400193), (52438, 395095), (79019, 262190), (131095, 158038)]