278868720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89381}}^1$

素因数の和:89410

約数の個数: 80

約数和(自身を含む): 931002912

約数和(自身を除く): 652134192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 89381, 178762, 268143, 357524, 446905, 536286, 715048, 893810, 1072572, 1161953, 1340715, 1430096, 1787620, 2145144, 2323906, 2681430, 3485859, 3575240, 4290288, 4647812, 5362860, 5809765, 6971718, 7150480, 9295624, 10725720, 11619530, 13943436, 17429295, 18591248, 21451440, 23239060, 27886872, 34858590, 46478120, 55773744, 69717180, 92956240, 139434360, 278868720]

約数ペア:

[(1, 278868720), (2, 139434360), (3, 92956240), (4, 69717180), (5, 55773744), (6, 46478120), (8, 34858590), (10, 27886872), (12, 23239060), (13, 21451440), (15, 18591248), (16, 17429295), (20, 13943436), (24, 11619530), (26, 10725720), (30, 9295624), (39, 7150480), (40, 6971718), (48, 5809765), (52, 5362860), (60, 4647812), (65, 4290288), (78, 3575240), (80, 3485859), (104, 2681430), (120, 2323906), (130, 2145144), (156, 1787620), (195, 1430096), (208, 1340715), (240, 1161953), (260, 1072572), (312, 893810), (390, 715048), (520, 536286), (624, 446905), (780, 357524), (1040, 268143), (1560, 178762), (3120, 89381)]