18640116

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 52014144

約数和(自身を除く): 33374028

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 103, 132, 198, 206, 309, 396, 412, 457, 618, 914, 927, 1133, 1236, 1371, 1828, 1854, 2266, 2742, 3399, 3708, 4113, 4532, 5027, 5484, 6798, 8226, 10054, 10197, 13596, 15081, 16452, 20108, 20394, 30162, 40788, 45243, 47071, 60324, 90486, 94142, 141213, 180972, 188284, 282426, 423639, 517781, 564852, 847278, 1035562, 1553343, 1694556, 2071124, 3106686, 4660029, 6213372, 9320058, 18640116]

約数ペア:

[(1, 18640116), (2, 9320058), (3, 6213372), (4, 4660029), (6, 3106686), (9, 2071124), (11, 1694556), (12, 1553343), (18, 1035562), (22, 847278), (33, 564852), (36, 517781), (44, 423639), (66, 282426), (99, 188284), (103, 180972), (132, 141213), (198, 94142), (206, 90486), (309, 60324), (396, 47071), (412, 45243), (457, 40788), (618, 30162), (914, 20394), (927, 20108), (1133, 16452), (1236, 15081), (1371, 13596), (1828, 10197), (1854, 10054), (2266, 8226), (2742, 6798), (3399, 5484), (3708, 5027), (4113, 4532)]