18874680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 44024520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 79, 88, 110, 120, 132, 158, 165, 181, 220, 237, 264, 316, 330, 362, 395, 440, 474, 543, 632, 660, 724, 790, 869, 905, 948, 1086, 1185, 1320, 1448, 1580, 1738, 1810, 1896, 1991, 2172, 2370, 2607, 2715, 3160, 3476, 3620, 3982, 4344, 4345, 4740, 5214, 5430, 5973, 6952, 7240, 7964, 8690, 9480, 9955, 10428, 10860, 11946, 13035, 14299, 15928, 17380, 19910, 20856, 21720, 23892, 26070, 28598, 29865, 34760, 39820, 42897, 47784, 52140, 57196, 59730, 71495, 79640, 85794, 104280, 114392, 119460, 142990, 157289, 171588, 214485, 238920, 285980, 314578, 343176, 428970, 471867, 571960, 629156, 786445, 857940, 943734, 1258312, 1572890, 1715880, 1887468, 2359335, 3145780, 3774936, 4718670, 6291560, 9437340, 18874680]

約数ペア:

[(1, 18874680), (2, 9437340), (3, 6291560), (4, 4718670), (5, 3774936), (6, 3145780), (8, 2359335), (10, 1887468), (11, 1715880), (12, 1572890), (15, 1258312), (20, 943734), (22, 857940), (24, 786445), (30, 629156), (33, 571960), (40, 471867), (44, 428970), (55, 343176), (60, 314578), (66, 285980), (79, 238920), (88, 214485), (110, 171588), (120, 157289), (132, 142990), (158, 119460), (165, 114392), (181, 104280), (220, 85794), (237, 79640), (264, 71495), (316, 59730), (330, 57196), (362, 52140), (395, 47784), (440, 42897), (474, 39820), (543, 34760), (632, 29865), (660, 28598), (724, 26070), (790, 23892), (869, 21720), (905, 20856), (948, 19910), (1086, 17380), (1185, 15928), (1320, 14299), (1448, 13035), (1580, 11946), (1738, 10860), (1810, 10428), (1896, 9955), (1991, 9480), (2172, 8690), (2370, 7964), (2607, 7240), (2715, 6952), (3160, 5973), (3476, 5430), (3620, 5214), (3982, 4740), (4344, 4345)]