18884880

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1249}}^1$

素因数の和:1278

約数の個数: 160

約数和(自身を含む): 74400000

約数和(自身を除く): 55515120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1249, 1260, 1512, 1680, 1890, 2160, 2498, 2520, 3024, 3747, 3780, 4996, 5040, 6245, 7494, 7560, 8743, 9992, 11241, 12490, 14988, 15120, 17486, 18735, 19984, 22482, 24980, 26229, 29976, 33723, 34972, 37470, 43715, 44964, 49960, 52458, 56205, 59952, 67446, 69944, 74940, 78687, 87430, 89928, 99920, 104916, 112410, 131145, 134892, 139888, 149880, 157374, 168615, 174860, 179856, 209832, 224820, 236061, 262290, 269784, 299760, 314748, 337230, 349720, 393435, 419664, 449640, 472122, 524580, 539568, 629496, 674460, 699440, 786870, 899280, 944244, 1049160, 1180305, 1258992, 1348920, 1573740, 1888488, 2098320, 2360610, 2697840, 3147480, 3776976, 4721220, 6294960, 9442440, 18884880]

約数ペア:

[(1, 18884880), (2, 9442440), (3, 6294960), (4, 4721220), (5, 3776976), (6, 3147480), (7, 2697840), (8, 2360610), (9, 2098320), (10, 1888488), (12, 1573740), (14, 1348920), (15, 1258992), (16, 1180305), (18, 1049160), (20, 944244), (21, 899280), (24, 786870), (27, 699440), (28, 674460), (30, 629496), (35, 539568), (36, 524580), (40, 472122), (42, 449640), (45, 419664), (48, 393435), (54, 349720), (56, 337230), (60, 314748), (63, 299760), (70, 269784), (72, 262290), (80, 236061), (84, 224820), (90, 209832), (105, 179856), (108, 174860), (112, 168615), (120, 157374), (126, 149880), (135, 139888), (140, 134892), (144, 131145), (168, 112410), (180, 104916), (189, 99920), (210, 89928), (216, 87430), (240, 78687), (252, 74940), (270, 69944), (280, 67446), (315, 59952), (336, 56205), (360, 52458), (378, 49960), (420, 44964), (432, 43715), (504, 37470), (540, 34972), (560, 33723), (630, 29976), (720, 26229), (756, 24980), (840, 22482), (945, 19984), (1008, 18735), (1080, 17486), (1249, 15120), (1260, 14988), (1512, 12490), (1680, 11241), (1890, 9992), (2160, 8743), (2498, 7560), (2520, 7494), (3024, 6245), (3747, 5040), (3780, 4996)]