19879080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12743}}^1$

素因数の和:12770

約数の個数: 64

約数和(自身を含む): 64229760

約数和(自身を除く): 44350680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12743, 25486, 38229, 50972, 63715, 76458, 101944, 127430, 152916, 165659, 191145, 254860, 305832, 331318, 382290, 496977, 509720, 662636, 764580, 828295, 993954, 1325272, 1529160, 1656590, 1987908, 2484885, 3313180, 3975816, 4969770, 6626360, 9939540, 19879080]

約数ペア:

[(1, 19879080), (2, 9939540), (3, 6626360), (4, 4969770), (5, 3975816), (6, 3313180), (8, 2484885), (10, 1987908), (12, 1656590), (13, 1529160), (15, 1325272), (20, 993954), (24, 828295), (26, 764580), (30, 662636), (39, 509720), (40, 496977), (52, 382290), (60, 331318), (65, 305832), (78, 254860), (104, 191145), (120, 165659), (130, 152916), (156, 127430), (195, 101944), (260, 76458), (312, 63715), (390, 50972), (520, 38229), (780, 25486), (1560, 12743)]