280997.0000000

素因数分解:

$2^1\times 3^2\times 5^1\times 7^4\times {\mathrm{11}}^1$

素因数の和:52

約数の個数: 120

約数和(自身を含む): 7865208

約数和(自身を除く): 5488218

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 49, 55, 63, 66, 70, 77, 90, 98, 99, 105, 110, 126, 147, 154, 165, 198, 210, 231, 245, 294, 315, 330, 343, 385, 441, 462, 490, 495, 539, 630, 686, 693, 735, 770, 882, 990, 1029, 1078, 1155, 1386, 1470, 1617, 1715, 2058, 2205, 2310, 2401, 2695, 3087, 3234, 3430, 3465, 3773, 4410, 4802, 4851, 5145, 5390, 6174, 6930, 7203, 7546, 8085, 9702, 10290, 11319, 12005, 14406, 15435, 16170, 18865, 21609, 22638, 24010, 24255, 26411, 30870, 33957, 36015, 37730, 43218, 48510, 52822, 56595, 67914, 72030, 79233, 108045, 113190, 132055, 158466, 169785, 216090, 237699, 264110, 339570, 396165, 475398, 792330, 1188495, 2376990]

約数ペア:

[(1, 2376990), (2, 1188495), (3, 792330), (5, 475398), (6, 396165), (7, 339570), (9, 264110), (10, 237699), (11, 216090), (14, 169785), (15, 158466), (18, 132055), (21, 113190), (22, 108045), (30, 79233), (33, 72030), (35, 67914), (42, 56595), (45, 52822), (49, 48510), (55, 43218), (63, 37730), (66, 36015), (70, 33957), (77, 30870), (90, 26411), (98, 24255), (99, 24010), (105, 22638), (110, 21609), (126, 18865), (147, 16170), (154, 15435), (165, 14406), (198, 12005), (210, 11319), (231, 10290), (245, 9702), (294, 8085), (315, 7546), (330, 7203), (343, 6930), (385, 6174), (441, 5390), (462, 5145), (490, 4851), (495, 4802), (539, 4410), (630, 3773), (686, 3465), (693, 3430), (735, 3234), (770, 3087), (882, 2695), (990, 2401), (1029, 2310), (1078, 2205), (1155, 2058), (1386, 1715), (1470, 1617)]