21543600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1381}}^1$

素因数の和:1415

約数の個数: 120

約数和(自身を含む): 74373712

約数和(自身を除く): 52830112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 104, 120, 130, 150, 156, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 520, 600, 624, 650, 780, 975, 1040, 1200, 1300, 1381, 1560, 1950, 2600, 2762, 3120, 3900, 4143, 5200, 5524, 6905, 7800, 8286, 11048, 13810, 15600, 16572, 17953, 20715, 22096, 27620, 33144, 34525, 35906, 41430, 53859, 55240, 66288, 69050, 71812, 82860, 89765, 103575, 107718, 110480, 138100, 143624, 165720, 179530, 207150, 215436, 269295, 276200, 287248, 331440, 359060, 414300, 430872, 448825, 538590, 552400, 718120, 828600, 861744, 897650, 1077180, 1346475, 1436240, 1657200, 1795300, 2154360, 2692950, 3590600, 4308720, 5385900, 7181200, 10771800, 21543600]

約数ペア:

[(1, 21543600), (2, 10771800), (3, 7181200), (4, 5385900), (5, 4308720), (6, 3590600), (8, 2692950), (10, 2154360), (12, 1795300), (13, 1657200), (15, 1436240), (16, 1346475), (20, 1077180), (24, 897650), (25, 861744), (26, 828600), (30, 718120), (39, 552400), (40, 538590), (48, 448825), (50, 430872), (52, 414300), (60, 359060), (65, 331440), (75, 287248), (78, 276200), (80, 269295), (100, 215436), (104, 207150), (120, 179530), (130, 165720), (150, 143624), (156, 138100), (195, 110480), (200, 107718), (208, 103575), (240, 89765), (260, 82860), (300, 71812), (312, 69050), (325, 66288), (390, 55240), (400, 53859), (520, 41430), (600, 35906), (624, 34525), (650, 33144), (780, 27620), (975, 22096), (1040, 20715), (1200, 17953), (1300, 16572), (1381, 15600), (1560, 13810), (1950, 11048), (2600, 8286), (2762, 7800), (3120, 6905), (3900, 5524), (4143, 5200)]