18789760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 52215840

約数和(自身を除く): 33426080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 157, 160, 170, 176, 187, 220, 272, 314, 320, 340, 352, 374, 440, 544, 628, 640, 680, 704, 748, 785, 880, 935, 1088, 1256, 1360, 1408, 1496, 1570, 1727, 1760, 1870, 2176, 2512, 2669, 2720, 2992, 3140, 3454, 3520, 3740, 5024, 5338, 5440, 5984, 6280, 6908, 7040, 7480, 8635, 10048, 10676, 10880, 11968, 12560, 13345, 13816, 14960, 17270, 20096, 21352, 23936, 25120, 26690, 27632, 29359, 29920, 34540, 42704, 50240, 53380, 55264, 58718, 59840, 69080, 85408, 100480, 106760, 110528, 117436, 119680, 138160, 146795, 170816, 213520, 221056, 234872, 276320, 293590, 341632, 427040, 469744, 552640, 587180, 854080, 939488, 1105280, 1174360, 1708160, 1878976, 2348720, 3757952, 4697440, 9394880, 18789760]

約数ペア:

[(1, 18789760), (2, 9394880), (4, 4697440), (5, 3757952), (8, 2348720), (10, 1878976), (11, 1708160), (16, 1174360), (17, 1105280), (20, 939488), (22, 854080), (32, 587180), (34, 552640), (40, 469744), (44, 427040), (55, 341632), (64, 293590), (68, 276320), (80, 234872), (85, 221056), (88, 213520), (110, 170816), (128, 146795), (136, 138160), (157, 119680), (160, 117436), (170, 110528), (176, 106760), (187, 100480), (220, 85408), (272, 69080), (314, 59840), (320, 58718), (340, 55264), (352, 53380), (374, 50240), (440, 42704), (544, 34540), (628, 29920), (640, 29359), (680, 27632), (704, 26690), (748, 25120), (785, 23936), (880, 21352), (935, 20096), (1088, 17270), (1256, 14960), (1360, 13816), (1408, 13345), (1496, 12560), (1570, 11968), (1727, 10880), (1760, 10676), (1870, 10048), (2176, 8635), (2512, 7480), (2669, 7040), (2720, 6908), (2992, 6280), (3140, 5984), (3454, 5440), (3520, 5338), (3740, 5024)]