19815510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 38245290

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 31, 33, 39, 55, 62, 65, 66, 78, 93, 110, 130, 143, 149, 155, 165, 186, 195, 286, 298, 310, 330, 341, 390, 403, 429, 447, 465, 682, 715, 745, 806, 858, 894, 930, 1023, 1209, 1430, 1490, 1639, 1705, 1937, 2015, 2046, 2145, 2235, 2418, 3278, 3410, 3874, 4030, 4290, 4433, 4470, 4619, 4917, 5115, 5811, 6045, 8195, 8866, 9238, 9685, 9834, 10230, 11622, 12090, 13299, 13857, 16390, 19370, 21307, 22165, 23095, 24585, 26598, 27714, 29055, 42614, 44330, 46190, 49170, 50809, 58110, 60047, 63921, 66495, 69285, 101618, 106535, 120094, 127842, 132990, 138570, 152427, 180141, 213070, 254045, 300235, 304854, 319605, 360282, 508090, 600470, 639210, 660517, 762135, 900705, 1321034, 1524270, 1801410, 1981551, 3302585, 3963102, 6605170, 9907755, 19815510]

約数ペア:

[(1, 19815510), (2, 9907755), (3, 6605170), (5, 3963102), (6, 3302585), (10, 1981551), (11, 1801410), (13, 1524270), (15, 1321034), (22, 900705), (26, 762135), (30, 660517), (31, 639210), (33, 600470), (39, 508090), (55, 360282), (62, 319605), (65, 304854), (66, 300235), (78, 254045), (93, 213070), (110, 180141), (130, 152427), (143, 138570), (149, 132990), (155, 127842), (165, 120094), (186, 106535), (195, 101618), (286, 69285), (298, 66495), (310, 63921), (330, 60047), (341, 58110), (390, 50809), (403, 49170), (429, 46190), (447, 44330), (465, 42614), (682, 29055), (715, 27714), (745, 26598), (806, 24585), (858, 23095), (894, 22165), (930, 21307), (1023, 19370), (1209, 16390), (1430, 13857), (1490, 13299), (1639, 12090), (1705, 11622), (1937, 10230), (2015, 9834), (2046, 9685), (2145, 9238), (2235, 8866), (2418, 8195), (3278, 6045), (3410, 5811), (3874, 5115), (4030, 4917), (4290, 4619), (4433, 4470)]