398820120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:945

約数の個数: 128

約数和(自身を含む): 1239114240

約数和(自身を除く): 840294120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 103, 120, 123, 164, 205, 206, 246, 309, 328, 410, 412, 492, 515, 615, 618, 787, 820, 824, 984, 1030, 1230, 1236, 1545, 1574, 1640, 2060, 2361, 2460, 2472, 3090, 3148, 3935, 4120, 4223, 4722, 4920, 6180, 6296, 7870, 8446, 9444, 11805, 12360, 12669, 15740, 16892, 18888, 21115, 23610, 25338, 31480, 32267, 33784, 42230, 47220, 50676, 63345, 64534, 81061, 84460, 94440, 96801, 101352, 126690, 129068, 161335, 162122, 168920, 193602, 243183, 253380, 258136, 322670, 324244, 387204, 405305, 484005, 486366, 506760, 645340, 648488, 774408, 810610, 968010, 972732, 1215915, 1290680, 1621220, 1936020, 1945464, 2431830, 3242440, 3323501, 3872040, 4863660, 6647002, 9727320, 9970503, 13294004, 16617505, 19941006, 26588008, 33235010, 39882012, 49852515, 66470020, 79764024, 99705030, 132940040, 199410060, 398820120]

約数ペア:

[(1, 398820120), (2, 199410060), (3, 132940040), (4, 99705030), (5, 79764024), (6, 66470020), (8, 49852515), (10, 39882012), (12, 33235010), (15, 26588008), (20, 19941006), (24, 16617505), (30, 13294004), (40, 9970503), (41, 9727320), (60, 6647002), (82, 4863660), (103, 3872040), (120, 3323501), (123, 3242440), (164, 2431830), (205, 1945464), (206, 1936020), (246, 1621220), (309, 1290680), (328, 1215915), (410, 972732), (412, 968010), (492, 810610), (515, 774408), (615, 648488), (618, 645340), (787, 506760), (820, 486366), (824, 484005), (984, 405305), (1030, 387204), (1230, 324244), (1236, 322670), (1545, 258136), (1574, 253380), (1640, 243183), (2060, 193602), (2361, 168920), (2460, 162122), (2472, 161335), (3090, 129068), (3148, 126690), (3935, 101352), (4120, 96801), (4223, 94440), (4722, 84460), (4920, 81061), (6180, 64534), (6296, 63345), (7870, 50676), (8446, 47220), (9444, 42230), (11805, 33784), (12360, 32267), (12669, 31480), (15740, 25338), (16892, 23610), (18888, 21115)]