20728392

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 55123200

約数和(自身を除く): 34394808

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 131, 152, 228, 262, 347, 393, 456, 524, 694, 786, 1041, 1048, 1388, 1572, 2082, 2489, 2776, 3144, 4164, 4978, 6593, 7467, 8328, 9956, 13186, 14934, 19779, 19912, 26372, 29868, 39558, 45457, 52744, 59736, 79116, 90914, 136371, 158232, 181828, 272742, 363656, 545484, 863683, 1090968, 1727366, 2591049, 3454732, 5182098, 6909464, 10364196, 20728392]

約数ペア:

[(1, 20728392), (2, 10364196), (3, 6909464), (4, 5182098), (6, 3454732), (8, 2591049), (12, 1727366), (19, 1090968), (24, 863683), (38, 545484), (57, 363656), (76, 272742), (114, 181828), (131, 158232), (152, 136371), (228, 90914), (262, 79116), (347, 59736), (393, 52744), (456, 45457), (524, 39558), (694, 29868), (786, 26372), (1041, 19912), (1048, 19779), (1388, 14934), (1572, 13186), (2082, 9956), (2489, 8328), (2776, 7467), (3144, 6593), (4164, 4978)]