1280778480

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{197651}}^1$

素因数の和:197676

約数の個数: 100

約数和(自身を含む): 4448355912

約数和(自身を除く): 3167577432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 197651, 395302, 592953, 790604, 988255, 1185906, 1581208, 1778859, 1976510, 2371812, 2964765, 3162416, 3557718, 3953020, 4743624, 5336577, 5929530, 7115436, 7906040, 8894295, 9487248, 10673154, 11859060, 14230872, 15812080, 16009731, 17788590, 21346308, 23718120, 26682885, 28461744, 32019462, 35577180, 42692616, 47436240, 53365770, 64038924, 71154360, 80048655, 85385232, 106731540, 128077848, 142308720, 160097310, 213463080, 256155696, 320194620, 426926160, 640389240, 1280778480]

約数ペア:

[(1, 1280778480), (2, 640389240), (3, 426926160), (4, 320194620), (5, 256155696), (6, 213463080), (8, 160097310), (9, 142308720), (10, 128077848), (12, 106731540), (15, 85385232), (16, 80048655), (18, 71154360), (20, 64038924), (24, 53365770), (27, 47436240), (30, 42692616), (36, 35577180), (40, 32019462), (45, 28461744), (48, 26682885), (54, 23718120), (60, 21346308), (72, 17788590), (80, 16009731), (81, 15812080), (90, 14230872), (108, 11859060), (120, 10673154), (135, 9487248), (144, 8894295), (162, 7906040), (180, 7115436), (216, 5929530), (240, 5336577), (270, 4743624), (324, 3953020), (360, 3557718), (405, 3162416), (432, 2964765), (540, 2371812), (648, 1976510), (720, 1778859), (810, 1581208), (1080, 1185906), (1296, 988255), (1620, 790604), (2160, 592953), (3240, 395302), (6480, 197651)]