400298880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{208489}}^1$

素因数の和:208511

約数の個数: 64

約数和(自身を含む): 1275958800

約数和(自身を除く): 875659920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 208489, 416978, 625467, 833956, 1042445, 1250934, 1667912, 2084890, 2501868, 3127335, 3335824, 4169780, 5003736, 6254670, 6671648, 8339560, 10007472, 12509340, 13343296, 16679120, 20014944, 25018680, 26686592, 33358240, 40029888, 50037360, 66716480, 80059776, 100074720, 133432960, 200149440, 400298880]

約数ペア:

[(1, 400298880), (2, 200149440), (3, 133432960), (4, 100074720), (5, 80059776), (6, 66716480), (8, 50037360), (10, 40029888), (12, 33358240), (15, 26686592), (16, 25018680), (20, 20014944), (24, 16679120), (30, 13343296), (32, 12509340), (40, 10007472), (48, 8339560), (60, 6671648), (64, 6254670), (80, 5003736), (96, 4169780), (120, 3335824), (128, 3127335), (160, 2501868), (192, 2084890), (240, 1667912), (320, 1250934), (384, 1042445), (480, 833956), (640, 625467), (960, 416978), (1920, 208489)]