28931756

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 65787120

約数和(自身を除く): 36855364

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 49, 68, 76, 98, 119, 133, 196, 238, 266, 323, 457, 476, 532, 646, 833, 914, 931, 1292, 1666, 1828, 1862, 2261, 3199, 3332, 3724, 4522, 6398, 7769, 8683, 9044, 12796, 15538, 15827, 17366, 22393, 31076, 31654, 34732, 44786, 54383, 60781, 63308, 89572, 108766, 121562, 147611, 217532, 243124, 295222, 380681, 425467, 590444, 761362, 850934, 1033277, 1522724, 1701868, 2066554, 4133108, 7232939, 14465878, 28931756]

約数ペア:

[(1, 28931756), (2, 14465878), (4, 7232939), (7, 4133108), (14, 2066554), (17, 1701868), (19, 1522724), (28, 1033277), (34, 850934), (38, 761362), (49, 590444), (68, 425467), (76, 380681), (98, 295222), (119, 243124), (133, 217532), (196, 147611), (238, 121562), (266, 108766), (323, 89572), (457, 63308), (476, 60781), (532, 54383), (646, 44786), (833, 34732), (914, 31654), (931, 31076), (1292, 22393), (1666, 17366), (1828, 15827), (1862, 15538), (2261, 12796), (3199, 9044), (3332, 8683), (3724, 7769), (4522, 6398)]