25780040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4507}}^1$

素因数の和:4542

約数の個数: 64

約数和(自身を含む): 68160960

約数和(自身を除く): 42380920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 4507, 5720, 9014, 18028, 22535, 36056, 45070, 49577, 58591, 90140, 99154, 117182, 180280, 198308, 234364, 247885, 292955, 396616, 468728, 495770, 585910, 644501, 991540, 1171820, 1289002, 1983080, 2343640, 2578004, 3222505, 5156008, 6445010, 12890020, 25780040]

約数ペア:

[(1, 25780040), (2, 12890020), (4, 6445010), (5, 5156008), (8, 3222505), (10, 2578004), (11, 2343640), (13, 1983080), (20, 1289002), (22, 1171820), (26, 991540), (40, 644501), (44, 585910), (52, 495770), (55, 468728), (65, 396616), (88, 292955), (104, 247885), (110, 234364), (130, 198308), (143, 180280), (220, 117182), (260, 99154), (286, 90140), (440, 58591), (520, 49577), (572, 45070), (715, 36056), (1144, 22535), (1430, 18028), (2860, 9014), (4507, 5720)]