25260040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1567}}^1$

素因数の和:1622

約数の個数: 64

約数和(自身を含む): 63221760

約数和(自身を除く): 37961720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1567, 1612, 2015, 3134, 3224, 4030, 6268, 7835, 8060, 12536, 15670, 16120, 20371, 31340, 40742, 48577, 62680, 81484, 97154, 101855, 162968, 194308, 203710, 242885, 388616, 407420, 485770, 631501, 814840, 971540, 1263002, 1943080, 2526004, 3157505, 5052008, 6315010, 12630020, 25260040]

約数ペア:

[(1, 25260040), (2, 12630020), (4, 6315010), (5, 5052008), (8, 3157505), (10, 2526004), (13, 1943080), (20, 1263002), (26, 971540), (31, 814840), (40, 631501), (52, 485770), (62, 407420), (65, 388616), (104, 242885), (124, 203710), (130, 194308), (155, 162968), (248, 101855), (260, 97154), (310, 81484), (403, 62680), (520, 48577), (620, 40742), (806, 31340), (1240, 20371), (1567, 16120), (1612, 15670), (2015, 12536), (3134, 8060), (3224, 7835), (4030, 6268)]