15420120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 49904640

約数和(自身を除く): 34484520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 37, 40, 46, 60, 69, 74, 92, 111, 115, 120, 138, 148, 151, 184, 185, 222, 230, 276, 296, 302, 345, 370, 444, 453, 460, 552, 555, 604, 690, 740, 755, 851, 888, 906, 920, 1110, 1208, 1380, 1480, 1510, 1702, 1812, 2220, 2265, 2553, 2760, 3020, 3404, 3473, 3624, 4255, 4440, 4530, 5106, 5587, 6040, 6808, 6946, 8510, 9060, 10212, 10419, 11174, 12765, 13892, 16761, 17020, 17365, 18120, 20424, 20838, 22348, 25530, 27784, 27935, 33522, 34040, 34730, 41676, 44696, 51060, 52095, 55870, 67044, 69460, 83352, 83805, 102120, 104190, 111740, 128501, 134088, 138920, 167610, 208380, 223480, 257002, 335220, 385503, 416760, 514004, 642505, 670440, 771006, 1028008, 1285010, 1542012, 1927515, 2570020, 3084024, 3855030, 5140040, 7710060, 15420120]

約数ペア:

[(1, 15420120), (2, 7710060), (3, 5140040), (4, 3855030), (5, 3084024), (6, 2570020), (8, 1927515), (10, 1542012), (12, 1285010), (15, 1028008), (20, 771006), (23, 670440), (24, 642505), (30, 514004), (37, 416760), (40, 385503), (46, 335220), (60, 257002), (69, 223480), (74, 208380), (92, 167610), (111, 138920), (115, 134088), (120, 128501), (138, 111740), (148, 104190), (151, 102120), (184, 83805), (185, 83352), (222, 69460), (230, 67044), (276, 55870), (296, 52095), (302, 51060), (345, 44696), (370, 41676), (444, 34730), (453, 34040), (460, 33522), (552, 27935), (555, 27784), (604, 25530), (690, 22348), (740, 20838), (755, 20424), (851, 18120), (888, 17365), (906, 17020), (920, 16761), (1110, 13892), (1208, 12765), (1380, 11174), (1480, 10419), (1510, 10212), (1702, 9060), (1812, 8510), (2220, 6946), (2265, 6808), (2553, 6040), (2760, 5587), (3020, 5106), (3404, 4530), (3473, 4440), (3624, 4255)]