19972432

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 40608512

約数和(自身を除く): 20636080

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 601, 1072, 1202, 2077, 2404, 4154, 4808, 8308, 9616, 16616, 18631, 33232, 37262, 40267, 74524, 80534, 149048, 161068, 298096, 322136, 644272, 1248277, 2496554, 4993108, 9986216, 19972432]

約数ペア:

[(1, 19972432), (2, 9986216), (4, 4993108), (8, 2496554), (16, 1248277), (31, 644272), (62, 322136), (67, 298096), (124, 161068), (134, 149048), (248, 80534), (268, 74524), (496, 40267), (536, 37262), (601, 33232), (1072, 18631), (1202, 16616), (2077, 9616), (2404, 8308), (4154, 4808)]