650506480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20177}}^1$

素因数の和:20234

約数の個数: 80

約数和(自身を含む): 1681392384

約数和(自身を除く): 1030885904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 20177, 32240, 40354, 80708, 100885, 161416, 201770, 262301, 322832, 403540, 524602, 625487, 807080, 1049204, 1250974, 1311505, 1614160, 2098408, 2501948, 2623010, 3127435, 4196816, 5003896, 5246020, 6254870, 8131331, 10007792, 10492040, 12509740, 16262662, 20984080, 25019480, 32525324, 40656655, 50038960, 65050648, 81313310, 130101296, 162626620, 325253240, 650506480]

約数ペア:

[(1, 650506480), (2, 325253240), (4, 162626620), (5, 130101296), (8, 81313310), (10, 65050648), (13, 50038960), (16, 40656655), (20, 32525324), (26, 25019480), (31, 20984080), (40, 16262662), (52, 12509740), (62, 10492040), (65, 10007792), (80, 8131331), (104, 6254870), (124, 5246020), (130, 5003896), (155, 4196816), (208, 3127435), (248, 2623010), (260, 2501948), (310, 2098408), (403, 1614160), (496, 1311505), (520, 1250974), (620, 1049204), (806, 807080), (1040, 625487), (1240, 524602), (1612, 403540), (2015, 322832), (2480, 262301), (3224, 201770), (4030, 161416), (6448, 100885), (8060, 80708), (16120, 40354), (20177, 32240)]