256788180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2526

約数の個数: 144

約数和(自身を含む): 866121984

約数和(自身を除く): 609333804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 53, 55, 60, 66, 90, 99, 106, 110, 132, 159, 165, 180, 198, 212, 220, 265, 318, 330, 396, 477, 495, 530, 583, 636, 660, 795, 954, 990, 1060, 1166, 1590, 1749, 1908, 1980, 2332, 2385, 2447, 2915, 3180, 3498, 4770, 4894, 5247, 5830, 6996, 7341, 8745, 9540, 9788, 10494, 11660, 12235, 14682, 17490, 20988, 22023, 24470, 26235, 26917, 29364, 34980, 36705, 44046, 48940, 52470, 53834, 73410, 80751, 88092, 104940, 107668, 110115, 129691, 134585, 146820, 161502, 220230, 242253, 259382, 269170, 323004, 389073, 403755, 440460, 484506, 518764, 538340, 648455, 778146, 807510, 969012, 1167219, 1211265, 1296910, 1426601, 1556292, 1615020, 1945365, 2334438, 2422530, 2593820, 2853202, 3890730, 4279803, 4668876, 4845060, 5706404, 5836095, 7133005, 7781460, 8559606, 11672190, 12839409, 14266010, 17119212, 21399015, 23344380, 25678818, 28532020, 42798030, 51357636, 64197045, 85596060, 128394090, 256788180]

約数ペア:

[(1, 256788180), (2, 128394090), (3, 85596060), (4, 64197045), (5, 51357636), (6, 42798030), (9, 28532020), (10, 25678818), (11, 23344380), (12, 21399015), (15, 17119212), (18, 14266010), (20, 12839409), (22, 11672190), (30, 8559606), (33, 7781460), (36, 7133005), (44, 5836095), (45, 5706404), (53, 4845060), (55, 4668876), (60, 4279803), (66, 3890730), (90, 2853202), (99, 2593820), (106, 2422530), (110, 2334438), (132, 1945365), (159, 1615020), (165, 1556292), (180, 1426601), (198, 1296910), (212, 1211265), (220, 1167219), (265, 969012), (318, 807510), (330, 778146), (396, 648455), (477, 538340), (495, 518764), (530, 484506), (583, 440460), (636, 403755), (660, 389073), (795, 323004), (954, 269170), (990, 259382), (1060, 242253), (1166, 220230), (1590, 161502), (1749, 146820), (1908, 134585), (1980, 129691), (2332, 110115), (2385, 107668), (2447, 104940), (2915, 88092), (3180, 80751), (3498, 73410), (4770, 53834), (4894, 52470), (5247, 48940), (5830, 44046), (6996, 36705), (7341, 34980), (8745, 29364), (9540, 26917), (9788, 26235), (10494, 24470), (11660, 22023), (12235, 20988), (14682, 17490)]