19880316

素因数分解:

$2^2\times 3^5\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 52865904

約数和(自身を除く): 32985588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 113, 162, 181, 226, 243, 324, 339, 362, 452, 486, 543, 678, 724, 972, 1017, 1086, 1356, 1629, 2034, 2172, 3051, 3258, 4068, 4887, 6102, 6516, 9153, 9774, 12204, 14661, 18306, 19548, 20453, 27459, 29322, 36612, 40906, 43983, 54918, 58644, 61359, 81812, 87966, 109836, 122718, 175932, 184077, 245436, 368154, 552231, 736308, 1104462, 1656693, 2208924, 3313386, 4970079, 6626772, 9940158, 19880316]

約数ペア:

[(1, 19880316), (2, 9940158), (3, 6626772), (4, 4970079), (6, 3313386), (9, 2208924), (12, 1656693), (18, 1104462), (27, 736308), (36, 552231), (54, 368154), (81, 245436), (108, 184077), (113, 175932), (162, 122718), (181, 109836), (226, 87966), (243, 81812), (324, 61359), (339, 58644), (362, 54918), (452, 43983), (486, 40906), (543, 36612), (678, 29322), (724, 27459), (972, 20453), (1017, 19548), (1086, 18306), (1356, 14661), (1629, 12204), (2034, 9774), (2172, 9153), (3051, 6516), (3258, 6102), (4068, 4887)]