18961680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 61531776

約数和(自身を除く): 42570096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 47, 48, 60, 80, 82, 94, 120, 123, 141, 164, 188, 205, 235, 240, 246, 282, 328, 376, 410, 470, 492, 564, 615, 656, 705, 752, 820, 940, 984, 1128, 1230, 1410, 1640, 1681, 1880, 1927, 1968, 2256, 2460, 2820, 3280, 3362, 3760, 3854, 4920, 5043, 5640, 5781, 6724, 7708, 8405, 9635, 9840, 10086, 11280, 11562, 13448, 15416, 16810, 19270, 20172, 23124, 25215, 26896, 28905, 30832, 33620, 38540, 40344, 46248, 50430, 57810, 67240, 77080, 79007, 80688, 92496, 100860, 115620, 134480, 154160, 158014, 201720, 231240, 237021, 316028, 395035, 403440, 462480, 474042, 632056, 790070, 948084, 1185105, 1264112, 1580140, 1896168, 2370210, 3160280, 3792336, 4740420, 6320560, 9480840, 18961680]

約数ペア:

[(1, 18961680), (2, 9480840), (3, 6320560), (4, 4740420), (5, 3792336), (6, 3160280), (8, 2370210), (10, 1896168), (12, 1580140), (15, 1264112), (16, 1185105), (20, 948084), (24, 790070), (30, 632056), (40, 474042), (41, 462480), (47, 403440), (48, 395035), (60, 316028), (80, 237021), (82, 231240), (94, 201720), (120, 158014), (123, 154160), (141, 134480), (164, 115620), (188, 100860), (205, 92496), (235, 80688), (240, 79007), (246, 77080), (282, 67240), (328, 57810), (376, 50430), (410, 46248), (470, 40344), (492, 38540), (564, 33620), (615, 30832), (656, 28905), (705, 26896), (752, 25215), (820, 23124), (940, 20172), (984, 19270), (1128, 16810), (1230, 15416), (1410, 13448), (1640, 11562), (1681, 11280), (1880, 10086), (1927, 9840), (1968, 9635), (2256, 8405), (2460, 7708), (2820, 6724), (3280, 5781), (3362, 5640), (3760, 5043), (3854, 4920)]