87701720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 209260800

約数和(自身を除く): 121559080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 167, 190, 334, 380, 668, 691, 760, 835, 1336, 1382, 1670, 2764, 3173, 3340, 3455, 5528, 6346, 6680, 6910, 12692, 13129, 13820, 15865, 25384, 26258, 27640, 31730, 52516, 63460, 65645, 105032, 115397, 126920, 131290, 230794, 262580, 461588, 525160, 576985, 923176, 1153970, 2192543, 2307940, 4385086, 4615880, 8770172, 10962715, 17540344, 21925430, 43850860, 87701720]

約数ペア:

[(1, 87701720), (2, 43850860), (4, 21925430), (5, 17540344), (8, 10962715), (10, 8770172), (19, 4615880), (20, 4385086), (38, 2307940), (40, 2192543), (76, 1153970), (95, 923176), (152, 576985), (167, 525160), (190, 461588), (334, 262580), (380, 230794), (668, 131290), (691, 126920), (760, 115397), (835, 105032), (1336, 65645), (1382, 63460), (1670, 52516), (2764, 31730), (3173, 27640), (3340, 26258), (3455, 25384), (5528, 15865), (6346, 13820), (6680, 13129), (6910, 12692)]