280079420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{26573}}^1$

素因数の和:26630

約数の個数: 48

約数和(自身を含む): 642878208

約数和(自身を除く): 362798788

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 10540, 26573, 53146, 106292, 132865, 265730, 451741, 531460, 823763, 903482, 1647526, 1806964, 2258705, 3295052, 4118815, 4517410, 8237630, 9034820, 14003971, 16475260, 28007942, 56015884, 70019855, 140039710, 280079420]

約数ペア:

[(1, 280079420), (2, 140039710), (4, 70019855), (5, 56015884), (10, 28007942), (17, 16475260), (20, 14003971), (31, 9034820), (34, 8237630), (62, 4517410), (68, 4118815), (85, 3295052), (124, 2258705), (155, 1806964), (170, 1647526), (310, 903482), (340, 823763), (527, 531460), (620, 451741), (1054, 265730), (2108, 132865), (2635, 106292), (5270, 53146), (10540, 26573)]