28720800

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{3989}}^1$

素因数の和:4015

約数の個数: 108

約数和(自身を含む): 101302110

約数和(自身を除く): 72581310

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 144, 150, 160, 180, 200, 225, 240, 288, 300, 360, 400, 450, 480, 600, 720, 800, 900, 1200, 1440, 1800, 2400, 3600, 3989, 7200, 7978, 11967, 15956, 19945, 23934, 31912, 35901, 39890, 47868, 59835, 63824, 71802, 79780, 95736, 99725, 119670, 127648, 143604, 159560, 179505, 191472, 199450, 239340, 287208, 299175, 319120, 359010, 382944, 398900, 478680, 574416, 598350, 638240, 718020, 797800, 897525, 957360, 1148832, 1196700, 1436040, 1595600, 1795050, 1914720, 2393400, 2872080, 3191200, 3590100, 4786800, 5744160, 7180200, 9573600, 14360400, 28720800]

約数ペア:

[(1, 28720800), (2, 14360400), (3, 9573600), (4, 7180200), (5, 5744160), (6, 4786800), (8, 3590100), (9, 3191200), (10, 2872080), (12, 2393400), (15, 1914720), (16, 1795050), (18, 1595600), (20, 1436040), (24, 1196700), (25, 1148832), (30, 957360), (32, 897525), (36, 797800), (40, 718020), (45, 638240), (48, 598350), (50, 574416), (60, 478680), (72, 398900), (75, 382944), (80, 359010), (90, 319120), (96, 299175), (100, 287208), (120, 239340), (144, 199450), (150, 191472), (160, 179505), (180, 159560), (200, 143604), (225, 127648), (240, 119670), (288, 99725), (300, 95736), (360, 79780), (400, 71802), (450, 63824), (480, 59835), (600, 47868), (720, 39890), (800, 35901), (900, 31912), (1200, 23934), (1440, 19945), (1800, 15956), (2400, 11967), (3600, 7978), (3989, 7200)]