5428720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 14284800

約数和(自身を除く): 8856080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 199, 220, 248, 310, 341, 398, 440, 496, 620, 682, 796, 880, 995, 1240, 1364, 1592, 1705, 1990, 2189, 2480, 2728, 3184, 3410, 3980, 4378, 5456, 6169, 6820, 7960, 8756, 10945, 12338, 13640, 15920, 17512, 21890, 24676, 27280, 30845, 35024, 43780, 49352, 61690, 67859, 87560, 98704, 123380, 135718, 175120, 246760, 271436, 339295, 493520, 542872, 678590, 1085744, 1357180, 2714360, 5428720]

約数ペア:

[(1, 5428720), (2, 2714360), (4, 1357180), (5, 1085744), (8, 678590), (10, 542872), (11, 493520), (16, 339295), (20, 271436), (22, 246760), (31, 175120), (40, 135718), (44, 123380), (55, 98704), (62, 87560), (80, 67859), (88, 61690), (110, 49352), (124, 43780), (155, 35024), (176, 30845), (199, 27280), (220, 24676), (248, 21890), (310, 17512), (341, 15920), (398, 13640), (440, 12338), (496, 10945), (620, 8756), (682, 7960), (796, 6820), (880, 6169), (995, 5456), (1240, 4378), (1364, 3980), (1592, 3410), (1705, 3184), (1990, 2728), (2189, 2480)]