400210720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27487}}^1$

素因数の和:27522

約数の個数: 96

約数和(自身を含む): 1163731968

約数和(自身を除く): 763521248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 7280, 14560, 27487, 54974, 109948, 137435, 192409, 219896, 274870, 357331, 384818, 439792, 549740, 714662, 769636, 879584, 962045, 1099480, 1429324, 1539272, 1786655, 1924090, 2198960, 2501317, 2858648, 3078544, 3573310, 3848180, 4397920, 5002634, 5717296, 6157088, 7146620, 7696360, 10005268, 11434592, 12506585, 14293240, 15392720, 20010536, 25013170, 28586480, 30785440, 40021072, 50026340, 57172960, 80042144, 100052680, 200105360, 400210720]

約数ペア:

[(1, 400210720), (2, 200105360), (4, 100052680), (5, 80042144), (7, 57172960), (8, 50026340), (10, 40021072), (13, 30785440), (14, 28586480), (16, 25013170), (20, 20010536), (26, 15392720), (28, 14293240), (32, 12506585), (35, 11434592), (40, 10005268), (52, 7696360), (56, 7146620), (65, 6157088), (70, 5717296), (80, 5002634), (91, 4397920), (104, 3848180), (112, 3573310), (130, 3078544), (140, 2858648), (160, 2501317), (182, 2198960), (208, 1924090), (224, 1786655), (260, 1539272), (280, 1429324), (364, 1099480), (416, 962045), (455, 879584), (520, 769636), (560, 714662), (728, 549740), (910, 439792), (1040, 384818), (1120, 357331), (1456, 274870), (1820, 219896), (2080, 192409), (2912, 137435), (3640, 109948), (7280, 54974), (14560, 27487)]