289412500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:192

約数の個数: 108

約数和(自身を含む): 690494868

約数和(自身を除く): 401082368

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 137, 169, 250, 260, 274, 325, 338, 500, 548, 625, 650, 676, 685, 845, 1250, 1300, 1370, 1625, 1690, 1781, 2500, 2740, 3125, 3250, 3380, 3425, 3562, 4225, 6250, 6500, 6850, 7124, 8125, 8450, 8905, 12500, 13700, 16250, 16900, 17125, 17810, 21125, 23153, 32500, 34250, 35620, 40625, 42250, 44525, 46306, 68500, 81250, 84500, 85625, 89050, 92612, 105625, 115765, 162500, 171250, 178100, 211250, 222625, 231530, 342500, 422500, 428125, 445250, 463060, 528125, 578825, 856250, 890500, 1056250, 1113125, 1157650, 1712500, 2112500, 2226250, 2315300, 2894125, 4452500, 5565625, 5788250, 11131250, 11576500, 14470625, 22262500, 28941250, 57882500, 72353125, 144706250, 289412500]

約数ペア:

[(1, 289412500), (2, 144706250), (4, 72353125), (5, 57882500), (10, 28941250), (13, 22262500), (20, 14470625), (25, 11576500), (26, 11131250), (50, 5788250), (52, 5565625), (65, 4452500), (100, 2894125), (125, 2315300), (130, 2226250), (137, 2112500), (169, 1712500), (250, 1157650), (260, 1113125), (274, 1056250), (325, 890500), (338, 856250), (500, 578825), (548, 528125), (625, 463060), (650, 445250), (676, 428125), (685, 422500), (845, 342500), (1250, 231530), (1300, 222625), (1370, 211250), (1625, 178100), (1690, 171250), (1781, 162500), (2500, 115765), (2740, 105625), (3125, 92612), (3250, 89050), (3380, 85625), (3425, 84500), (3562, 81250), (4225, 68500), (6250, 46306), (6500, 44525), (6850, 42250), (7124, 40625), (8125, 35620), (8450, 34250), (8905, 32500), (12500, 23153), (13700, 21125), (16250, 17810), (16900, 17125)]