420454736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 912941568

約数和(自身を除く): 492486832

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 197, 208, 248, 331, 394, 403, 496, 662, 788, 806, 1324, 1576, 1612, 2561, 2648, 3152, 3224, 4303, 5122, 5296, 6107, 6448, 8606, 10244, 10261, 12214, 17212, 20488, 20522, 24428, 34424, 40976, 41044, 48856, 65207, 68848, 79391, 82088, 97712, 130414, 133393, 158782, 164176, 260828, 266786, 317564, 521656, 533572, 635128, 847691, 1043312, 1067144, 1270256, 1695382, 2021417, 2134288, 3390764, 4042834, 6781528, 8085668, 13563056, 16171336, 26278421, 32342672, 52556842, 105113684, 210227368, 420454736]

約数ペア:

[(1, 420454736), (2, 210227368), (4, 105113684), (8, 52556842), (13, 32342672), (16, 26278421), (26, 16171336), (31, 13563056), (52, 8085668), (62, 6781528), (104, 4042834), (124, 3390764), (197, 2134288), (208, 2021417), (248, 1695382), (331, 1270256), (394, 1067144), (403, 1043312), (496, 847691), (662, 635128), (788, 533572), (806, 521656), (1324, 317564), (1576, 266786), (1612, 260828), (2561, 164176), (2648, 158782), (3152, 133393), (3224, 130414), (4303, 97712), (5122, 82088), (5296, 79391), (6107, 68848), (6448, 65207), (8606, 48856), (10244, 41044), (10261, 40976), (12214, 34424), (17212, 24428), (20488, 20522)]