20188384

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 44097480

約数和(自身を除く): 23909096

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 59, 68, 74, 118, 136, 148, 236, 272, 289, 296, 472, 544, 578, 592, 629, 944, 1003, 1156, 1184, 1258, 1888, 2006, 2183, 2312, 2516, 4012, 4366, 4624, 5032, 8024, 8732, 9248, 10064, 10693, 16048, 17051, 17464, 20128, 21386, 32096, 34102, 34928, 37111, 42772, 68204, 69856, 74222, 85544, 136408, 148444, 171088, 272816, 296888, 342176, 545632, 593776, 630887, 1187552, 1261774, 2523548, 5047096, 10094192, 20188384]

約数ペア:

[(1, 20188384), (2, 10094192), (4, 5047096), (8, 2523548), (16, 1261774), (17, 1187552), (32, 630887), (34, 593776), (37, 545632), (59, 342176), (68, 296888), (74, 272816), (118, 171088), (136, 148444), (148, 136408), (236, 85544), (272, 74222), (289, 69856), (296, 68204), (472, 42772), (544, 37111), (578, 34928), (592, 34102), (629, 32096), (944, 21386), (1003, 20128), (1156, 17464), (1184, 17051), (1258, 16048), (1888, 10693), (2006, 10064), (2183, 9248), (2312, 8732), (2516, 8024), (4012, 5032), (4366, 4624)]