18984780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11719}}^1$

素因数の和:11740

約数の個数: 60

約数和(自身を含む): 59561040

約数和(自身を除く): 40576260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 11719, 23438, 35157, 46876, 58595, 70314, 105471, 117190, 140628, 175785, 210942, 234380, 316413, 351570, 421884, 527355, 632826, 703140, 949239, 1054710, 1265652, 1582065, 1898478, 2109420, 3164130, 3796956, 4746195, 6328260, 9492390, 18984780]

約数ペア:

[(1, 18984780), (2, 9492390), (3, 6328260), (4, 4746195), (5, 3796956), (6, 3164130), (9, 2109420), (10, 1898478), (12, 1582065), (15, 1265652), (18, 1054710), (20, 949239), (27, 703140), (30, 632826), (36, 527355), (45, 421884), (54, 351570), (60, 316413), (81, 234380), (90, 210942), (108, 175785), (135, 140628), (162, 117190), (180, 105471), (270, 70314), (324, 58595), (405, 46876), (540, 35157), (810, 23438), (1620, 11719)]