128480400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 180

約数和(自身を含む): 451996740

約数和(自身を除く): 323516340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 89, 90, 100, 120, 144, 150, 178, 180, 200, 225, 240, 267, 300, 356, 360, 400, 401, 445, 450, 534, 600, 712, 720, 801, 802, 890, 900, 1068, 1200, 1203, 1335, 1424, 1602, 1604, 1780, 1800, 2005, 2136, 2225, 2406, 2670, 3204, 3208, 3560, 3600, 3609, 4005, 4010, 4272, 4450, 4812, 5340, 6015, 6408, 6416, 6675, 7120, 7218, 8010, 8020, 8900, 9624, 10025, 10680, 12030, 12816, 13350, 14436, 16020, 16040, 17800, 18045, 19248, 20025, 20050, 21360, 24060, 26700, 28872, 30075, 32040, 32080, 35600, 35689, 36090, 40050, 40100, 48120, 53400, 57744, 60150, 64080, 71378, 72180, 80100, 80200, 90225, 96240, 106800, 107067, 120300, 142756, 144360, 160200, 160400, 178445, 180450, 214134, 240600, 285512, 288720, 320400, 321201, 356890, 360900, 428268, 481200, 535335, 571024, 642402, 713780, 721800, 856536, 892225, 1070670, 1284804, 1427560, 1443600, 1606005, 1713072, 1784450, 2141340, 2569608, 2676675, 2855120, 3212010, 3568900, 4282680, 5139216, 5353350, 6424020, 7137800, 8030025, 8565360, 10706700, 12848040, 14275600, 16060050, 21413400, 25696080, 32120100, 42826800, 64240200, 128480400]

約数ペア:

[(1, 128480400), (2, 64240200), (3, 42826800), (4, 32120100), (5, 25696080), (6, 21413400), (8, 16060050), (9, 14275600), (10, 12848040), (12, 10706700), (15, 8565360), (16, 8030025), (18, 7137800), (20, 6424020), (24, 5353350), (25, 5139216), (30, 4282680), (36, 3568900), (40, 3212010), (45, 2855120), (48, 2676675), (50, 2569608), (60, 2141340), (72, 1784450), (75, 1713072), (80, 1606005), (89, 1443600), (90, 1427560), (100, 1284804), (120, 1070670), (144, 892225), (150, 856536), (178, 721800), (180, 713780), (200, 642402), (225, 571024), (240, 535335), (267, 481200), (300, 428268), (356, 360900), (360, 356890), (400, 321201), (401, 320400), (445, 288720), (450, 285512), (534, 240600), (600, 214134), (712, 180450), (720, 178445), (801, 160400), (802, 160200), (890, 144360), (900, 142756), (1068, 120300), (1200, 107067), (1203, 106800), (1335, 96240), (1424, 90225), (1602, 80200), (1604, 80100), (1780, 72180), (1800, 71378), (2005, 64080), (2136, 60150), (2225, 57744), (2406, 53400), (2670, 48120), (3204, 40100), (3208, 40050), (3560, 36090), (3600, 35689), (3609, 35600), (4005, 32080), (4010, 32040), (4272, 30075), (4450, 28872), (4812, 26700), (5340, 24060), (6015, 21360), (6408, 20050), (6416, 20025), (6675, 19248), (7120, 18045), (7218, 17800), (8010, 16040), (8020, 16020), (8900, 14436), (9624, 13350), (10025, 12816), (10680, 12030)]