321745140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61637}}^1$

素因数の和:61681

約数の個数: 72

約数和(自身を含む): 1009630440

約数和(自身を除く): 687885300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 61637, 123274, 184911, 246548, 308185, 369822, 554733, 616370, 739644, 924555, 1109466, 1232740, 1787473, 1849110, 2218932, 2773665, 3574946, 3698220, 5362419, 5547330, 7149892, 8937365, 10724838, 11094660, 16087257, 17874730, 21449676, 26812095, 32174514, 35749460, 53624190, 64349028, 80436285, 107248380, 160872570, 321745140]

約数ペア:

[(1, 321745140), (2, 160872570), (3, 107248380), (4, 80436285), (5, 64349028), (6, 53624190), (9, 35749460), (10, 32174514), (12, 26812095), (15, 21449676), (18, 17874730), (20, 16087257), (29, 11094660), (30, 10724838), (36, 8937365), (45, 7149892), (58, 5547330), (60, 5362419), (87, 3698220), (90, 3574946), (116, 2773665), (145, 2218932), (174, 1849110), (180, 1787473), (261, 1232740), (290, 1109466), (348, 924555), (435, 739644), (522, 616370), (580, 554733), (870, 369822), (1044, 308185), (1305, 246548), (1740, 184911), (2610, 123274), (5220, 61637)]