8115380

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{13}}^2$

素因数の和:63

約数の個数: 90

約数和(自身を含む): 21528486

約数和(自身を除く): 13413106

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 338, 343, 364, 455, 490, 637, 676, 686, 845, 910, 980, 1183, 1274, 1372, 1690, 1715, 1820, 2366, 2401, 2548, 3185, 3380, 3430, 4459, 4732, 4802, 5915, 6370, 6860, 8281, 8918, 9604, 11830, 12005, 12740, 16562, 17836, 22295, 23660, 24010, 31213, 33124, 41405, 44590, 48020, 57967, 62426, 82810, 89180, 115934, 124852, 156065, 165620, 231868, 289835, 312130, 405769, 579670, 624260, 811538, 1159340, 1623076, 2028845, 4057690, 8115380]

約数ペア:

[(1, 8115380), (2, 4057690), (4, 2028845), (5, 1623076), (7, 1159340), (10, 811538), (13, 624260), (14, 579670), (20, 405769), (26, 312130), (28, 289835), (35, 231868), (49, 165620), (52, 156065), (65, 124852), (70, 115934), (91, 89180), (98, 82810), (130, 62426), (140, 57967), (169, 48020), (182, 44590), (196, 41405), (245, 33124), (260, 31213), (338, 24010), (343, 23660), (364, 22295), (455, 17836), (490, 16562), (637, 12740), (676, 12005), (686, 11830), (845, 9604), (910, 8918), (980, 8281), (1183, 6860), (1274, 6370), (1372, 5915), (1690, 4802), (1715, 4732), (1820, 4459), (2366, 3430), (2401, 3380), (2548, 3185)]