28200700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:883

約数の個数: 72

約数和(自身を含む): 68995584

約数和(自身を除く): 40794884

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, 620, 682, 775, 827, 1100, 1364, 1550, 1654, 1705, 3100, 3308, 3410, 4135, 6820, 8270, 8525, 9097, 16540, 17050, 18194, 20675, 25637, 34100, 36388, 41350, 45485, 51274, 82700, 90970, 102548, 128185, 181940, 227425, 256370, 282007, 454850, 512740, 564014, 640925, 909700, 1128028, 1281850, 1410035, 2563700, 2820070, 5640140, 7050175, 14100350, 28200700]

約数ペア:

[(1, 28200700), (2, 14100350), (4, 7050175), (5, 5640140), (10, 2820070), (11, 2563700), (20, 1410035), (22, 1281850), (25, 1128028), (31, 909700), (44, 640925), (50, 564014), (55, 512740), (62, 454850), (100, 282007), (110, 256370), (124, 227425), (155, 181940), (220, 128185), (275, 102548), (310, 90970), (341, 82700), (550, 51274), (620, 45485), (682, 41350), (775, 36388), (827, 34100), (1100, 25637), (1364, 20675), (1550, 18194), (1654, 17050), (1705, 16540), (3100, 9097), (3308, 8525), (3410, 8270), (4135, 6820)]