28987312

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 35294288

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 71, 76, 79, 136, 142, 152, 158, 272, 284, 304, 316, 323, 568, 632, 646, 1136, 1207, 1264, 1292, 1343, 1349, 1501, 2414, 2584, 2686, 2698, 3002, 4828, 5168, 5372, 5396, 5609, 6004, 9656, 10744, 10792, 11218, 12008, 19312, 21488, 21584, 22436, 22933, 24016, 25517, 44872, 45866, 51034, 89744, 91732, 95353, 102068, 106571, 183464, 190706, 204136, 213142, 366928, 381412, 408272, 426284, 762824, 852568, 1525648, 1705136, 1811707, 3623414, 7246828, 14493656, 28987312]

約数ペア:

[(1, 28987312), (2, 14493656), (4, 7246828), (8, 3623414), (16, 1811707), (17, 1705136), (19, 1525648), (34, 852568), (38, 762824), (68, 426284), (71, 408272), (76, 381412), (79, 366928), (136, 213142), (142, 204136), (152, 190706), (158, 183464), (272, 106571), (284, 102068), (304, 95353), (316, 91732), (323, 89744), (568, 51034), (632, 45866), (646, 44872), (1136, 25517), (1207, 24016), (1264, 22933), (1292, 22436), (1343, 21584), (1349, 21488), (1501, 19312), (2414, 12008), (2584, 11218), (2686, 10792), (2698, 10744), (3002, 9656), (4828, 6004), (5168, 5609), (5372, 5396)]