18868140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:653

約数の個数: 120

約数和(自身を含む): 62406960

約数和(自身を除く): 43538820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 613, 684, 810, 855, 1026, 1140, 1226, 1539, 1620, 1710, 1839, 2052, 2452, 2565, 3065, 3078, 3420, 3678, 5130, 5517, 6130, 6156, 7356, 7695, 9195, 10260, 11034, 11647, 12260, 15390, 16551, 18390, 22068, 23294, 27585, 30780, 33102, 34941, 36780, 46588, 49653, 55170, 58235, 66204, 69882, 82755, 99306, 104823, 110340, 116470, 139764, 165510, 174705, 198612, 209646, 232940, 248265, 314469, 331020, 349410, 419292, 496530, 524115, 628938, 698820, 943407, 993060, 1048230, 1257876, 1572345, 1886814, 2096460, 3144690, 3773628, 4717035, 6289380, 9434070, 18868140]

約数ペア:

[(1, 18868140), (2, 9434070), (3, 6289380), (4, 4717035), (5, 3773628), (6, 3144690), (9, 2096460), (10, 1886814), (12, 1572345), (15, 1257876), (18, 1048230), (19, 993060), (20, 943407), (27, 698820), (30, 628938), (36, 524115), (38, 496530), (45, 419292), (54, 349410), (57, 331020), (60, 314469), (76, 248265), (81, 232940), (90, 209646), (95, 198612), (108, 174705), (114, 165510), (135, 139764), (162, 116470), (171, 110340), (180, 104823), (190, 99306), (228, 82755), (270, 69882), (285, 66204), (324, 58235), (342, 55170), (380, 49653), (405, 46588), (513, 36780), (540, 34941), (570, 33102), (613, 30780), (684, 27585), (810, 23294), (855, 22068), (1026, 18390), (1140, 16551), (1226, 15390), (1539, 12260), (1620, 11647), (1710, 11034), (1839, 10260), (2052, 9195), (2452, 7695), (2565, 7356), (3065, 6156), (3078, 6130), (3420, 5517), (3678, 5130)]