20503890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 38464110

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 139, 149, 165, 198, 278, 298, 330, 417, 447, 495, 695, 745, 834, 894, 990, 1251, 1341, 1390, 1490, 1529, 1639, 2085, 2235, 2502, 2682, 3058, 3278, 4170, 4470, 4587, 4917, 6255, 6705, 7645, 8195, 9174, 9834, 12510, 13410, 13761, 14751, 15290, 16390, 20711, 22935, 24585, 27522, 29502, 41422, 45870, 49170, 62133, 68805, 73755, 103555, 124266, 137610, 147510, 186399, 207110, 227821, 310665, 372798, 455642, 621330, 683463, 931995, 1139105, 1366926, 1863990, 2050389, 2278210, 3417315, 4100778, 6834630, 10251945, 20503890]

約数ペア:

[(1, 20503890), (2, 10251945), (3, 6834630), (5, 4100778), (6, 3417315), (9, 2278210), (10, 2050389), (11, 1863990), (15, 1366926), (18, 1139105), (22, 931995), (30, 683463), (33, 621330), (45, 455642), (55, 372798), (66, 310665), (90, 227821), (99, 207110), (110, 186399), (139, 147510), (149, 137610), (165, 124266), (198, 103555), (278, 73755), (298, 68805), (330, 62133), (417, 49170), (447, 45870), (495, 41422), (695, 29502), (745, 27522), (834, 24585), (894, 22935), (990, 20711), (1251, 16390), (1341, 15290), (1390, 14751), (1490, 13761), (1529, 13410), (1639, 12510), (2085, 9834), (2235, 9174), (2502, 8195), (2682, 7645), (3058, 6705), (3278, 6255), (4170, 4917), (4470, 4587)]