1688403990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{618463}}^1$

素因数の和:618493

約数の個数: 64

約数和(自身を含む): 4987293696

約数和(自身を除く): 3298889706

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 618463, 1236926, 1855389, 3092315, 3710778, 4329241, 6184630, 8040019, 8658482, 9276945, 12987723, 16080038, 18553890, 21646205, 24120057, 25975446, 40200095, 43292410, 48240114, 56280133, 64938615, 80400190, 112560266, 120600285, 129877230, 168840399, 241200570, 281400665, 337680798, 562801330, 844201995, 1688403990]

約数ペア:

[(1, 1688403990), (2, 844201995), (3, 562801330), (5, 337680798), (6, 281400665), (7, 241200570), (10, 168840399), (13, 129877230), (14, 120600285), (15, 112560266), (21, 80400190), (26, 64938615), (30, 56280133), (35, 48240114), (39, 43292410), (42, 40200095), (65, 25975446), (70, 24120057), (78, 21646205), (91, 18553890), (105, 16080038), (130, 12987723), (182, 9276945), (195, 8658482), (210, 8040019), (273, 6184630), (390, 4329241), (455, 3710778), (546, 3092315), (910, 1855389), (1365, 1236926), (2730, 618463)]