28663920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1031

約数の個数: 120

約数和(自身を含む): 98712432

約数和(自身を除く): 70048512

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 120, 123, 144, 164, 180, 205, 240, 246, 328, 360, 369, 410, 492, 615, 656, 720, 738, 820, 971, 984, 1230, 1476, 1640, 1845, 1942, 1968, 2460, 2913, 2952, 3280, 3690, 3884, 4855, 4920, 5826, 5904, 7380, 7768, 8739, 9710, 9840, 11652, 14565, 14760, 15536, 17478, 19420, 23304, 29130, 29520, 34956, 38840, 39811, 43695, 46608, 58260, 69912, 77680, 79622, 87390, 116520, 119433, 139824, 159244, 174780, 199055, 233040, 238866, 318488, 349560, 358299, 398110, 477732, 597165, 636976, 699120, 716598, 796220, 955464, 1194330, 1433196, 1592440, 1791495, 1910928, 2388660, 2866392, 3184880, 3582990, 4777320, 5732784, 7165980, 9554640, 14331960, 28663920]

約数ペア:

[(1, 28663920), (2, 14331960), (3, 9554640), (4, 7165980), (5, 5732784), (6, 4777320), (8, 3582990), (9, 3184880), (10, 2866392), (12, 2388660), (15, 1910928), (16, 1791495), (18, 1592440), (20, 1433196), (24, 1194330), (30, 955464), (36, 796220), (40, 716598), (41, 699120), (45, 636976), (48, 597165), (60, 477732), (72, 398110), (80, 358299), (82, 349560), (90, 318488), (120, 238866), (123, 233040), (144, 199055), (164, 174780), (180, 159244), (205, 139824), (240, 119433), (246, 116520), (328, 87390), (360, 79622), (369, 77680), (410, 69912), (492, 58260), (615, 46608), (656, 43695), (720, 39811), (738, 38840), (820, 34956), (971, 29520), (984, 29130), (1230, 23304), (1476, 19420), (1640, 17478), (1845, 15536), (1942, 14760), (1968, 14565), (2460, 11652), (2913, 9840), (2952, 9710), (3280, 8739), (3690, 7768), (3884, 7380), (4855, 5904), (4920, 5826)]