20013228

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 53114880

約数和(自身を除く): 33101652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 227, 237, 279, 316, 372, 454, 474, 558, 681, 711, 908, 948, 1116, 1362, 1422, 2043, 2449, 2724, 2844, 4086, 4898, 7037, 7347, 8172, 9796, 14074, 14694, 17933, 21111, 22041, 28148, 29388, 35866, 42222, 44082, 53799, 63333, 71732, 84444, 88164, 107598, 126666, 161397, 215196, 253332, 322794, 555923, 645588, 1111846, 1667769, 2223692, 3335538, 5003307, 6671076, 10006614, 20013228]

約数ペア:

[(1, 20013228), (2, 10006614), (3, 6671076), (4, 5003307), (6, 3335538), (9, 2223692), (12, 1667769), (18, 1111846), (31, 645588), (36, 555923), (62, 322794), (79, 253332), (93, 215196), (124, 161397), (158, 126666), (186, 107598), (227, 88164), (237, 84444), (279, 71732), (316, 63333), (372, 53799), (454, 44082), (474, 42222), (558, 35866), (681, 29388), (711, 28148), (908, 22041), (948, 21111), (1116, 17933), (1362, 14694), (1422, 14074), (2043, 9796), (2449, 8172), (2724, 7347), (2844, 7037), (4086, 4898)]