20666336

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 22008352

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 83, 124, 166, 248, 251, 332, 496, 502, 664, 992, 1004, 1328, 2008, 2573, 2656, 4016, 5146, 7781, 8032, 10292, 15562, 20584, 20833, 31124, 41168, 41666, 62248, 82336, 83332, 124496, 166664, 248992, 333328, 645823, 666656, 1291646, 2583292, 5166584, 10333168, 20666336]

約数ペア:

[(1, 20666336), (2, 10333168), (4, 5166584), (8, 2583292), (16, 1291646), (31, 666656), (32, 645823), (62, 333328), (83, 248992), (124, 166664), (166, 124496), (248, 83332), (251, 82336), (332, 62248), (496, 41666), (502, 41168), (664, 31124), (992, 20833), (1004, 20584), (1328, 15562), (2008, 10292), (2573, 8032), (2656, 7781), (4016, 5146)]