31427900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 87494400

約数和(自身を除く): 56066500

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 25, 28, 34, 35, 38, 50, 68, 70, 76, 85, 95, 100, 119, 133, 139, 140, 170, 175, 190, 238, 266, 278, 323, 340, 350, 380, 425, 475, 476, 532, 556, 595, 646, 665, 695, 700, 850, 950, 973, 1190, 1292, 1330, 1390, 1615, 1700, 1900, 1946, 2261, 2363, 2380, 2641, 2660, 2780, 2975, 3230, 3325, 3475, 3892, 4522, 4726, 4865, 5282, 5950, 6460, 6650, 6950, 8075, 9044, 9452, 9730, 10564, 11305, 11815, 11900, 13205, 13300, 13900, 16150, 16541, 18487, 19460, 22610, 23630, 24325, 26410, 32300, 33082, 36974, 44897, 45220, 47260, 48650, 52820, 56525, 59075, 66025, 66164, 73948, 82705, 89794, 92435, 97300, 113050, 118150, 132050, 165410, 179588, 184870, 224485, 226100, 236300, 264100, 314279, 330820, 369740, 413525, 448970, 462175, 628558, 827050, 897940, 924350, 1122425, 1257116, 1571395, 1654100, 1848700, 2244850, 3142790, 4489700, 6285580, 7856975, 15713950, 31427900]

約数ペア:

[(1, 31427900), (2, 15713950), (4, 7856975), (5, 6285580), (7, 4489700), (10, 3142790), (14, 2244850), (17, 1848700), (19, 1654100), (20, 1571395), (25, 1257116), (28, 1122425), (34, 924350), (35, 897940), (38, 827050), (50, 628558), (68, 462175), (70, 448970), (76, 413525), (85, 369740), (95, 330820), (100, 314279), (119, 264100), (133, 236300), (139, 226100), (140, 224485), (170, 184870), (175, 179588), (190, 165410), (238, 132050), (266, 118150), (278, 113050), (323, 97300), (340, 92435), (350, 89794), (380, 82705), (425, 73948), (475, 66164), (476, 66025), (532, 59075), (556, 56525), (595, 52820), (646, 48650), (665, 47260), (695, 45220), (700, 44897), (850, 36974), (950, 33082), (973, 32300), (1190, 26410), (1292, 24325), (1330, 23630), (1390, 22610), (1615, 19460), (1700, 18487), (1900, 16541), (1946, 16150), (2261, 13900), (2363, 13300), (2380, 13205), (2641, 11900), (2660, 11815), (2780, 11305), (2975, 10564), (3230, 9730), (3325, 9452), (3475, 9044), (3892, 8075), (4522, 6950), (4726, 6650), (4865, 6460), (5282, 5950)]