81870228

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2617}}^1$

素因数の和:2717

約数の個数: 72

約数和(自身を含む): 228708480

約数和(自身を除く): 146838252

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 79, 99, 132, 158, 198, 237, 316, 396, 474, 711, 869, 948, 1422, 1738, 2607, 2617, 2844, 3476, 5214, 5234, 7821, 7851, 10428, 10468, 15642, 15702, 23553, 28787, 31284, 31404, 47106, 57574, 86361, 94212, 115148, 172722, 206743, 259083, 345444, 413486, 518166, 620229, 826972, 1036332, 1240458, 1860687, 2274173, 2480916, 3721374, 4548346, 6822519, 7442748, 9096692, 13645038, 20467557, 27290076, 40935114, 81870228]

約数ペア:

[(1, 81870228), (2, 40935114), (3, 27290076), (4, 20467557), (6, 13645038), (9, 9096692), (11, 7442748), (12, 6822519), (18, 4548346), (22, 3721374), (33, 2480916), (36, 2274173), (44, 1860687), (66, 1240458), (79, 1036332), (99, 826972), (132, 620229), (158, 518166), (198, 413486), (237, 345444), (316, 259083), (396, 206743), (474, 172722), (711, 115148), (869, 94212), (948, 86361), (1422, 57574), (1738, 47106), (2607, 31404), (2617, 31284), (2844, 28787), (3476, 23553), (5214, 15702), (5234, 15642), (7821, 10468), (7851, 10428)]