19675700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:633

約数の個数: 72

約数和(自身を含む): 48163584

約数和(自身を除く): 28487884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 577, 620, 682, 775, 1100, 1154, 1364, 1550, 1705, 2308, 2885, 3100, 3410, 5770, 6347, 6820, 8525, 11540, 12694, 14425, 17050, 17887, 25388, 28850, 31735, 34100, 35774, 57700, 63470, 71548, 89435, 126940, 158675, 178870, 196757, 317350, 357740, 393514, 447175, 634700, 787028, 894350, 983785, 1788700, 1967570, 3935140, 4918925, 9837850, 19675700]

約数ペア:

[(1, 19675700), (2, 9837850), (4, 4918925), (5, 3935140), (10, 1967570), (11, 1788700), (20, 983785), (22, 894350), (25, 787028), (31, 634700), (44, 447175), (50, 393514), (55, 357740), (62, 317350), (100, 196757), (110, 178870), (124, 158675), (155, 126940), (220, 89435), (275, 71548), (310, 63470), (341, 57700), (550, 35774), (577, 34100), (620, 31735), (682, 28850), (775, 25388), (1100, 17887), (1154, 17050), (1364, 14425), (1550, 12694), (1705, 11540), (2308, 8525), (2885, 6820), (3100, 6347), (3410, 5770)]