18943890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{263}}^1$

素因数の和:301

約数の個数: 80

約数和(自身を含む): 53241408

約数和(自身を除く): 34297518

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 263, 294, 343, 490, 526, 686, 735, 789, 1029, 1315, 1470, 1578, 1715, 1841, 2058, 2401, 2630, 3430, 3682, 3945, 4802, 5145, 5523, 7203, 7890, 9205, 10290, 11046, 12005, 12887, 14406, 18410, 24010, 25774, 27615, 36015, 38661, 55230, 64435, 72030, 77322, 90209, 128870, 180418, 193305, 270627, 386610, 451045, 541254, 631463, 902090, 1262926, 1353135, 1894389, 2706270, 3157315, 3788778, 6314630, 9471945, 18943890]

約数ペア:

[(1, 18943890), (2, 9471945), (3, 6314630), (5, 3788778), (6, 3157315), (7, 2706270), (10, 1894389), (14, 1353135), (15, 1262926), (21, 902090), (30, 631463), (35, 541254), (42, 451045), (49, 386610), (70, 270627), (98, 193305), (105, 180418), (147, 128870), (210, 90209), (245, 77322), (263, 72030), (294, 64435), (343, 55230), (490, 38661), (526, 36015), (686, 27615), (735, 25774), (789, 24010), (1029, 18410), (1315, 14406), (1470, 12887), (1578, 12005), (1715, 11046), (1841, 10290), (2058, 9205), (2401, 7890), (2630, 7203), (3430, 5523), (3682, 5145), (3945, 4802)]