217731420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{787}}^1$

素因数の和:884

約数の個数: 144

約数和(自身を含む): 697001760

約数和(自身を除く): 479270340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 53, 58, 60, 87, 90, 106, 116, 145, 159, 174, 180, 212, 261, 265, 290, 318, 348, 435, 477, 522, 530, 580, 636, 787, 795, 870, 954, 1044, 1060, 1305, 1537, 1574, 1590, 1740, 1908, 2361, 2385, 2610, 3074, 3148, 3180, 3935, 4611, 4722, 4770, 5220, 6148, 7083, 7685, 7870, 9222, 9444, 9540, 11805, 13833, 14166, 15370, 15740, 18444, 22823, 23055, 23610, 27666, 28332, 30740, 35415, 41711, 45646, 46110, 47220, 55332, 68469, 69165, 70830, 83422, 91292, 92220, 114115, 125133, 136938, 138330, 141660, 166844, 205407, 208555, 228230, 250266, 273876, 276660, 342345, 375399, 410814, 417110, 456460, 500532, 625665, 684690, 750798, 821628, 834220, 1027035, 1209619, 1251330, 1369380, 1501596, 1876995, 2054070, 2419238, 2502660, 3628857, 3753990, 4108140, 4838476, 6048095, 7257714, 7507980, 10886571, 12096190, 14515428, 18144285, 21773142, 24192380, 36288570, 43546284, 54432855, 72577140, 108865710, 217731420]

約数ペア:

[(1, 217731420), (2, 108865710), (3, 72577140), (4, 54432855), (5, 43546284), (6, 36288570), (9, 24192380), (10, 21773142), (12, 18144285), (15, 14515428), (18, 12096190), (20, 10886571), (29, 7507980), (30, 7257714), (36, 6048095), (45, 4838476), (53, 4108140), (58, 3753990), (60, 3628857), (87, 2502660), (90, 2419238), (106, 2054070), (116, 1876995), (145, 1501596), (159, 1369380), (174, 1251330), (180, 1209619), (212, 1027035), (261, 834220), (265, 821628), (290, 750798), (318, 684690), (348, 625665), (435, 500532), (477, 456460), (522, 417110), (530, 410814), (580, 375399), (636, 342345), (787, 276660), (795, 273876), (870, 250266), (954, 228230), (1044, 208555), (1060, 205407), (1305, 166844), (1537, 141660), (1574, 138330), (1590, 136938), (1740, 125133), (1908, 114115), (2361, 92220), (2385, 91292), (2610, 83422), (3074, 70830), (3148, 69165), (3180, 68469), (3935, 55332), (4611, 47220), (4722, 46110), (4770, 45646), (5220, 41711), (6148, 35415), (7083, 30740), (7685, 28332), (7870, 27666), (9222, 23610), (9444, 23055), (9540, 22823), (11805, 18444), (13833, 15740), (14166, 15370)]