218928780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:988

約数の個数: 144

約数和(自身を含む): 763176960

約数和(自身を除く): 544248180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 239, 252, 315, 420, 478, 630, 717, 727, 956, 1195, 1260, 1434, 1454, 1673, 2151, 2181, 2390, 2868, 2908, 3346, 3585, 3635, 4302, 4362, 4780, 5019, 5089, 6543, 6692, 7170, 7270, 8365, 8604, 8724, 10038, 10178, 10755, 10905, 13086, 14340, 14540, 15057, 15267, 16730, 20076, 20356, 21510, 21810, 25095, 25445, 26172, 30114, 30534, 32715, 33460, 43020, 43620, 45801, 50190, 50890, 60228, 61068, 65430, 75285, 76335, 91602, 100380, 101780, 130860, 150570, 152670, 173753, 183204, 229005, 301140, 305340, 347506, 458010, 521259, 695012, 868765, 916020, 1042518, 1216271, 1563777, 1737530, 2085036, 2432542, 2606295, 3127554, 3475060, 3648813, 4865084, 5212590, 6081355, 6255108, 7297626, 7818885, 10425180, 10946439, 12162710, 14595252, 15637770, 18244065, 21892878, 24325420, 31275540, 36488130, 43785756, 54732195, 72976260, 109464390, 218928780]

約数ペア:

[(1, 218928780), (2, 109464390), (3, 72976260), (4, 54732195), (5, 43785756), (6, 36488130), (7, 31275540), (9, 24325420), (10, 21892878), (12, 18244065), (14, 15637770), (15, 14595252), (18, 12162710), (20, 10946439), (21, 10425180), (28, 7818885), (30, 7297626), (35, 6255108), (36, 6081355), (42, 5212590), (45, 4865084), (60, 3648813), (63, 3475060), (70, 3127554), (84, 2606295), (90, 2432542), (105, 2085036), (126, 1737530), (140, 1563777), (180, 1216271), (210, 1042518), (239, 916020), (252, 868765), (315, 695012), (420, 521259), (478, 458010), (630, 347506), (717, 305340), (727, 301140), (956, 229005), (1195, 183204), (1260, 173753), (1434, 152670), (1454, 150570), (1673, 130860), (2151, 101780), (2181, 100380), (2390, 91602), (2868, 76335), (2908, 75285), (3346, 65430), (3585, 61068), (3635, 60228), (4302, 50890), (4362, 50190), (4780, 45801), (5019, 43620), (5089, 43020), (6543, 33460), (6692, 32715), (7170, 30534), (7270, 30114), (8365, 26172), (8604, 25445), (8724, 25095), (10038, 21810), (10178, 21510), (10755, 20356), (10905, 20076), (13086, 16730), (14340, 15267), (14540, 15057)]