20282730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 52956288

約数和(自身を除く): 32673558

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 131, 195, 262, 390, 393, 397, 655, 786, 794, 1191, 1310, 1703, 1965, 1985, 2382, 3406, 3930, 3970, 5109, 5161, 5955, 8515, 10218, 10322, 11910, 15483, 17030, 25545, 25805, 30966, 51090, 51610, 52007, 77415, 104014, 154830, 156021, 260035, 312042, 520070, 676091, 780105, 1352182, 1560210, 2028273, 3380455, 4056546, 6760910, 10141365, 20282730]

約数ペア:

[(1, 20282730), (2, 10141365), (3, 6760910), (5, 4056546), (6, 3380455), (10, 2028273), (13, 1560210), (15, 1352182), (26, 780105), (30, 676091), (39, 520070), (65, 312042), (78, 260035), (130, 156021), (131, 154830), (195, 104014), (262, 77415), (390, 52007), (393, 51610), (397, 51090), (655, 30966), (786, 25805), (794, 25545), (1191, 17030), (1310, 15483), (1703, 11910), (1965, 10322), (1985, 10218), (2382, 8515), (3406, 5955), (3930, 5161), (3970, 5109)]