400224720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{238229}}^1$

素因数の和:238252

約数の個数: 80

約数和(自身を含む): 1417944960

約数和(自身を除く): 1017720240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 238229, 476458, 714687, 952916, 1191145, 1429374, 1667603, 1905832, 2382290, 2858748, 3335206, 3573435, 3811664, 4764580, 5002809, 5717496, 6670412, 7146870, 8338015, 9529160, 10005618, 11434992, 13340824, 14293740, 16676030, 19058320, 20011236, 25014045, 26681648, 28587480, 33352060, 40022472, 50028090, 57174960, 66704120, 80044944, 100056180, 133408240, 200112360, 400224720]

約数ペア:

[(1, 400224720), (2, 200112360), (3, 133408240), (4, 100056180), (5, 80044944), (6, 66704120), (7, 57174960), (8, 50028090), (10, 40022472), (12, 33352060), (14, 28587480), (15, 26681648), (16, 25014045), (20, 20011236), (21, 19058320), (24, 16676030), (28, 14293740), (30, 13340824), (35, 11434992), (40, 10005618), (42, 9529160), (48, 8338015), (56, 7146870), (60, 6670412), (70, 5717496), (80, 5002809), (84, 4764580), (105, 3811664), (112, 3573435), (120, 3335206), (140, 2858748), (168, 2382290), (210, 1905832), (240, 1667603), (280, 1429374), (336, 1191145), (420, 952916), (560, 714687), (840, 476458), (1680, 238229)]