261557040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1475

約数の個数: 160

約数和(自身を含む): 874944000

約数和(自身を除く): 613386960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 41, 48, 57, 60, 76, 80, 82, 95, 114, 120, 123, 152, 164, 190, 205, 228, 240, 246, 285, 304, 328, 380, 410, 456, 492, 570, 615, 656, 760, 779, 820, 912, 984, 1140, 1230, 1399, 1520, 1558, 1640, 1968, 2280, 2337, 2460, 2798, 3116, 3280, 3895, 4197, 4560, 4674, 4920, 5596, 6232, 6995, 7790, 8394, 9348, 9840, 11192, 11685, 12464, 13990, 15580, 16788, 18696, 20985, 22384, 23370, 26581, 27980, 31160, 33576, 37392, 41970, 46740, 53162, 55960, 57359, 62320, 67152, 79743, 83940, 93480, 106324, 111920, 114718, 132905, 159486, 167880, 172077, 186960, 212648, 229436, 265810, 286795, 318972, 335760, 344154, 398715, 425296, 458872, 531620, 573590, 637944, 688308, 797430, 860385, 917744, 1063240, 1089821, 1147180, 1275888, 1376616, 1594860, 1720770, 2126480, 2179642, 2294360, 2753232, 3189720, 3269463, 3441540, 4359284, 4588720, 5449105, 6379440, 6538926, 6883080, 8718568, 10898210, 13077852, 13766160, 16347315, 17437136, 21796420, 26155704, 32694630, 43592840, 52311408, 65389260, 87185680, 130778520, 261557040]

約数ペア:

[(1, 261557040), (2, 130778520), (3, 87185680), (4, 65389260), (5, 52311408), (6, 43592840), (8, 32694630), (10, 26155704), (12, 21796420), (15, 17437136), (16, 16347315), (19, 13766160), (20, 13077852), (24, 10898210), (30, 8718568), (38, 6883080), (40, 6538926), (41, 6379440), (48, 5449105), (57, 4588720), (60, 4359284), (76, 3441540), (80, 3269463), (82, 3189720), (95, 2753232), (114, 2294360), (120, 2179642), (123, 2126480), (152, 1720770), (164, 1594860), (190, 1376616), (205, 1275888), (228, 1147180), (240, 1089821), (246, 1063240), (285, 917744), (304, 860385), (328, 797430), (380, 688308), (410, 637944), (456, 573590), (492, 531620), (570, 458872), (615, 425296), (656, 398715), (760, 344154), (779, 335760), (820, 318972), (912, 286795), (984, 265810), (1140, 229436), (1230, 212648), (1399, 186960), (1520, 172077), (1558, 167880), (1640, 159486), (1968, 132905), (2280, 114718), (2337, 111920), (2460, 106324), (2798, 93480), (3116, 83940), (3280, 79743), (3895, 67152), (4197, 62320), (4560, 57359), (4674, 55960), (4920, 53162), (5596, 46740), (6232, 41970), (6995, 37392), (7790, 33576), (8394, 31160), (9348, 27980), (9840, 26581), (11192, 23370), (11685, 22384), (12464, 20985), (13990, 18696), (15580, 16788)]