84390280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162289}}^1$

素因数の和:162313

約数の個数: 32

約数和(自身を含む): 204485400

約数和(自身を除く): 120095120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 162289, 324578, 649156, 811445, 1298312, 1622890, 2109757, 3245780, 4219514, 6491560, 8439028, 10548785, 16878056, 21097570, 42195140, 84390280]

約数ペア:

[(1, 84390280), (2, 42195140), (4, 21097570), (5, 16878056), (8, 10548785), (10, 8439028), (13, 6491560), (20, 4219514), (26, 3245780), (40, 2109757), (52, 1622890), (65, 1298312), (104, 811445), (130, 649156), (260, 324578), (520, 162289)]