8478765100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{123059}}^1$

素因数の和:123139

約数の個数: 72

約数和(自身を含む): 20188239120

約数和(自身を除く): 11709474020

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 530, 650, 689, 1060, 1300, 1325, 1378, 2650, 2756, 3445, 5300, 6890, 13780, 17225, 34450, 68900, 123059, 246118, 492236, 615295, 1230590, 1599767, 2461180, 3076475, 3199534, 6152950, 6399068, 6522127, 7998835, 12305900, 13044254, 15997670, 26088508, 31995340, 32610635, 39994175, 65221270, 79988350, 84787651, 130442540, 159976700, 163053175, 169575302, 326106350, 339150604, 423938255, 652212700, 847876510, 1695753020, 2119691275, 4239382550, 8478765100]

約数ペア:

[(1, 8478765100), (2, 4239382550), (4, 2119691275), (5, 1695753020), (10, 847876510), (13, 652212700), (20, 423938255), (25, 339150604), (26, 326106350), (50, 169575302), (52, 163053175), (53, 159976700), (65, 130442540), (100, 84787651), (106, 79988350), (130, 65221270), (212, 39994175), (260, 32610635), (265, 31995340), (325, 26088508), (530, 15997670), (650, 13044254), (689, 12305900), (1060, 7998835), (1300, 6522127), (1325, 6399068), (1378, 6152950), (2650, 3199534), (2756, 3076475), (3445, 2461180), (5300, 1599767), (6890, 1230590), (13780, 615295), (17225, 492236), (34450, 246118), (68900, 123059)]