20087172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1105

約数の個数: 72

約数和(自身を含む): 58822400

約数和(自身を除く): 38735228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1009, 1106, 1422, 1659, 2018, 2212, 2844, 3027, 3318, 4036, 4977, 6054, 6636, 7063, 9081, 9954, 12108, 14126, 18162, 19908, 21189, 28252, 36324, 42378, 63567, 79711, 84756, 127134, 159422, 239133, 254268, 318844, 478266, 557977, 717399, 956532, 1115954, 1434798, 1673931, 2231908, 2869596, 3347862, 5021793, 6695724, 10043586, 20087172]

約数ペア:

[(1, 20087172), (2, 10043586), (3, 6695724), (4, 5021793), (6, 3347862), (7, 2869596), (9, 2231908), (12, 1673931), (14, 1434798), (18, 1115954), (21, 956532), (28, 717399), (36, 557977), (42, 478266), (63, 318844), (79, 254268), (84, 239133), (126, 159422), (158, 127134), (237, 84756), (252, 79711), (316, 63567), (474, 42378), (553, 36324), (711, 28252), (948, 21189), (1009, 19908), (1106, 18162), (1422, 14126), (1659, 12108), (2018, 9954), (2212, 9081), (2844, 7063), (3027, 6636), (3318, 6054), (4036, 4977)]