20880684

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{787}}^1$

素因数の和:875

約数の個数: 72

約数和(自身を含む): 58513728

約数和(自身を除く): 37633044

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 67, 99, 132, 134, 198, 201, 268, 396, 402, 603, 737, 787, 804, 1206, 1474, 1574, 2211, 2361, 2412, 2948, 3148, 4422, 4722, 6633, 7083, 8657, 8844, 9444, 13266, 14166, 17314, 25971, 26532, 28332, 34628, 51942, 52729, 77913, 103884, 105458, 155826, 158187, 210916, 311652, 316374, 474561, 580019, 632748, 949122, 1160038, 1740057, 1898244, 2320076, 3480114, 5220171, 6960228, 10440342, 20880684]

約数ペア:

[(1, 20880684), (2, 10440342), (3, 6960228), (4, 5220171), (6, 3480114), (9, 2320076), (11, 1898244), (12, 1740057), (18, 1160038), (22, 949122), (33, 632748), (36, 580019), (44, 474561), (66, 316374), (67, 311652), (99, 210916), (132, 158187), (134, 155826), (198, 105458), (201, 103884), (268, 77913), (396, 52729), (402, 51942), (603, 34628), (737, 28332), (787, 26532), (804, 25971), (1206, 17314), (1474, 14166), (1574, 13266), (2211, 9444), (2361, 8844), (2412, 8657), (2948, 7083), (3148, 6633), (4422, 4722)]