27957520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 70160688

約数和(自身を除く): 42203168

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 337, 340, 488, 610, 674, 680, 976, 1037, 1220, 1348, 1360, 1685, 2074, 2440, 2696, 3370, 4148, 4880, 5185, 5392, 5729, 6740, 8296, 10370, 11458, 13480, 16592, 20557, 20740, 22916, 26960, 28645, 41114, 41480, 45832, 57290, 82228, 82960, 91664, 102785, 114580, 164456, 205570, 229160, 328912, 349469, 411140, 458320, 698938, 822280, 1397876, 1644560, 1747345, 2795752, 3494690, 5591504, 6989380, 13978760, 27957520]

約数ペア:

[(1, 27957520), (2, 13978760), (4, 6989380), (5, 5591504), (8, 3494690), (10, 2795752), (16, 1747345), (17, 1644560), (20, 1397876), (34, 822280), (40, 698938), (61, 458320), (68, 411140), (80, 349469), (85, 328912), (122, 229160), (136, 205570), (170, 164456), (244, 114580), (272, 102785), (305, 91664), (337, 82960), (340, 82228), (488, 57290), (610, 45832), (674, 41480), (680, 41114), (976, 28645), (1037, 26960), (1220, 22916), (1348, 20740), (1360, 20557), (1685, 16592), (2074, 13480), (2440, 11458), (2696, 10370), (3370, 8296), (4148, 6740), (4880, 5729), (5185, 5392)]