18861480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{433}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 67534740

約数和(自身を除く): 48673260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 433, 440, 484, 495, 605, 660, 726, 792, 866, 968, 990, 1089, 1210, 1299, 1320, 1452, 1732, 1815, 1980, 2165, 2178, 2420, 2598, 2904, 3464, 3630, 3897, 3960, 4330, 4356, 4763, 4840, 5196, 5445, 6495, 7260, 7794, 8660, 8712, 9526, 10392, 10890, 12990, 14289, 14520, 15588, 17320, 19052, 19485, 21780, 23815, 25980, 28578, 31176, 38104, 38970, 42867, 43560, 47630, 51960, 52393, 57156, 71445, 77940, 85734, 95260, 104786, 114312, 142890, 155880, 157179, 171468, 190520, 209572, 214335, 261965, 285780, 314358, 342936, 419144, 428670, 471537, 523930, 571560, 628716, 785895, 857340, 943074, 1047860, 1257432, 1571790, 1714680, 1886148, 2095720, 2357685, 3143580, 3772296, 4715370, 6287160, 9430740, 18861480]

約数ペア:

[(1, 18861480), (2, 9430740), (3, 6287160), (4, 4715370), (5, 3772296), (6, 3143580), (8, 2357685), (9, 2095720), (10, 1886148), (11, 1714680), (12, 1571790), (15, 1257432), (18, 1047860), (20, 943074), (22, 857340), (24, 785895), (30, 628716), (33, 571560), (36, 523930), (40, 471537), (44, 428670), (45, 419144), (55, 342936), (60, 314358), (66, 285780), (72, 261965), (88, 214335), (90, 209572), (99, 190520), (110, 171468), (120, 157179), (121, 155880), (132, 142890), (165, 114312), (180, 104786), (198, 95260), (220, 85734), (242, 77940), (264, 71445), (330, 57156), (360, 52393), (363, 51960), (396, 47630), (433, 43560), (440, 42867), (484, 38970), (495, 38104), (605, 31176), (660, 28578), (726, 25980), (792, 23815), (866, 21780), (968, 19485), (990, 19052), (1089, 17320), (1210, 15588), (1299, 14520), (1320, 14289), (1452, 12990), (1732, 10890), (1815, 10392), (1980, 9526), (2165, 8712), (2178, 8660), (2420, 7794), (2598, 7260), (2904, 6495), (3464, 5445), (3630, 5196), (3897, 4840), (3960, 4763), (4330, 4356)]