405261640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4481}}^1$

素因数の和:4535

約数の個数: 128

約数和(自身を含む): 1161734400

約数和(自身を除く): 756472760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 2261, 2380, 2584, 2660, 3230, 4481, 4522, 4760, 5320, 6460, 8962, 9044, 11305, 12920, 17924, 18088, 22405, 22610, 31367, 35848, 44810, 45220, 62734, 76177, 85139, 89620, 90440, 125468, 152354, 156835, 170278, 179240, 250936, 304708, 313670, 340556, 380885, 425695, 533239, 595973, 609416, 627340, 681112, 761770, 851390, 1066478, 1191946, 1254680, 1447363, 1523540, 1702780, 2132956, 2383892, 2666195, 2894726, 2979865, 3047080, 3405560, 4265912, 4767784, 5332390, 5789452, 5959730, 7236815, 10131541, 10664780, 11578904, 11919460, 14473630, 20263082, 21329560, 23838920, 28947260, 40526164, 50657705, 57894520, 81052328, 101315410, 202630820, 405261640]

約数ペア:

[(1, 405261640), (2, 202630820), (4, 101315410), (5, 81052328), (7, 57894520), (8, 50657705), (10, 40526164), (14, 28947260), (17, 23838920), (19, 21329560), (20, 20263082), (28, 14473630), (34, 11919460), (35, 11578904), (38, 10664780), (40, 10131541), (56, 7236815), (68, 5959730), (70, 5789452), (76, 5332390), (85, 4767784), (95, 4265912), (119, 3405560), (133, 3047080), (136, 2979865), (140, 2894726), (152, 2666195), (170, 2383892), (190, 2132956), (238, 1702780), (266, 1523540), (280, 1447363), (323, 1254680), (340, 1191946), (380, 1066478), (476, 851390), (532, 761770), (595, 681112), (646, 627340), (665, 609416), (680, 595973), (760, 533239), (952, 425695), (1064, 380885), (1190, 340556), (1292, 313670), (1330, 304708), (1615, 250936), (2261, 179240), (2380, 170278), (2584, 156835), (2660, 152354), (3230, 125468), (4481, 90440), (4522, 89620), (4760, 85139), (5320, 76177), (6460, 62734), (8962, 45220), (9044, 44810), (11305, 35848), (12920, 31367), (17924, 22610), (18088, 22405)]