20388636

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 53464320

約数和(自身を除く): 33075684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 79, 107, 134, 158, 201, 214, 237, 268, 316, 321, 402, 428, 474, 603, 642, 711, 804, 948, 963, 1206, 1284, 1422, 1926, 2412, 2844, 3852, 5293, 7169, 8453, 10586, 14338, 15879, 16906, 21172, 21507, 25359, 28676, 31758, 33812, 43014, 47637, 50718, 63516, 64521, 76077, 86028, 95274, 101436, 129042, 152154, 190548, 258084, 304308, 566351, 1132702, 1699053, 2265404, 3398106, 5097159, 6796212, 10194318, 20388636]

約数ペア:

[(1, 20388636), (2, 10194318), (3, 6796212), (4, 5097159), (6, 3398106), (9, 2265404), (12, 1699053), (18, 1132702), (36, 566351), (67, 304308), (79, 258084), (107, 190548), (134, 152154), (158, 129042), (201, 101436), (214, 95274), (237, 86028), (268, 76077), (316, 64521), (321, 63516), (402, 50718), (428, 47637), (474, 43014), (603, 33812), (642, 31758), (711, 28676), (804, 25359), (948, 21507), (963, 21172), (1206, 16906), (1284, 15879), (1422, 14338), (1926, 10586), (2412, 8453), (2844, 7169), (3852, 5293)]