21980200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 56871360

約数和(自身を除く): 34891160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 97, 100, 103, 110, 194, 200, 206, 220, 275, 388, 412, 440, 485, 515, 550, 776, 824, 970, 1030, 1067, 1100, 1133, 1940, 2060, 2134, 2200, 2266, 2425, 2575, 3880, 4120, 4268, 4532, 4850, 5150, 5335, 5665, 8536, 9064, 9700, 9991, 10300, 10670, 11330, 19400, 19982, 20600, 21340, 22660, 26675, 28325, 39964, 42680, 45320, 49955, 53350, 56650, 79928, 99910, 106700, 109901, 113300, 199820, 213400, 219802, 226600, 249775, 399640, 439604, 499550, 549505, 879208, 999100, 1099010, 1998200, 2198020, 2747525, 4396040, 5495050, 10990100, 21980200]

約数ペア:

[(1, 21980200), (2, 10990100), (4, 5495050), (5, 4396040), (8, 2747525), (10, 2198020), (11, 1998200), (20, 1099010), (22, 999100), (25, 879208), (40, 549505), (44, 499550), (50, 439604), (55, 399640), (88, 249775), (97, 226600), (100, 219802), (103, 213400), (110, 199820), (194, 113300), (200, 109901), (206, 106700), (220, 99910), (275, 79928), (388, 56650), (412, 53350), (440, 49955), (485, 45320), (515, 42680), (550, 39964), (776, 28325), (824, 26675), (970, 22660), (1030, 21340), (1067, 20600), (1100, 19982), (1133, 19400), (1940, 11330), (2060, 10670), (2134, 10300), (2200, 9991), (2266, 9700), (2425, 9064), (2575, 8536), (3880, 5665), (4120, 5335), (4268, 5150), (4532, 4850)]