18084220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11743}}^1$

素因数の和:11770

約数の個数: 48

約数和(自身を含む): 47351808

約数和(自身を除く): 29267588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11743, 23486, 46972, 58715, 82201, 117430, 129173, 164402, 234860, 258346, 328804, 411005, 516692, 645865, 822010, 904211, 1291730, 1644020, 1808422, 2583460, 3616844, 4521055, 9042110, 18084220]

約数ペア:

[(1, 18084220), (2, 9042110), (4, 4521055), (5, 3616844), (7, 2583460), (10, 1808422), (11, 1644020), (14, 1291730), (20, 904211), (22, 822010), (28, 645865), (35, 516692), (44, 411005), (55, 328804), (70, 258346), (77, 234860), (110, 164402), (140, 129173), (154, 117430), (220, 82201), (308, 58715), (385, 46972), (770, 23486), (1540, 11743)]