20807370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4919}}^1$

素因数の和:4979

約数の個数: 48

約数和(自身を含む): 55261440

約数和(自身を除く): 34454070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 90, 94, 141, 235, 282, 423, 470, 705, 846, 1410, 2115, 4230, 4919, 9838, 14757, 24595, 29514, 44271, 49190, 73785, 88542, 147570, 221355, 231193, 442710, 462386, 693579, 1155965, 1387158, 2080737, 2311930, 3467895, 4161474, 6935790, 10403685, 20807370]

約数ペア:

[(1, 20807370), (2, 10403685), (3, 6935790), (5, 4161474), (6, 3467895), (9, 2311930), (10, 2080737), (15, 1387158), (18, 1155965), (30, 693579), (45, 462386), (47, 442710), (90, 231193), (94, 221355), (141, 147570), (235, 88542), (282, 73785), (423, 49190), (470, 44271), (705, 29514), (846, 24595), (1410, 14757), (2115, 9838), (4230, 4919)]