1640471440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1206229}}^1$

素因数の和:1206259

約数の個数: 40

約数和(自身を含む): 4038458040

約数和(自身を除く): 2397986600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1206229, 2412458, 4824916, 6031145, 9649832, 12062290, 19299664, 20505893, 24124580, 41011786, 48249160, 82023572, 96498320, 102529465, 164047144, 205058930, 328094288, 410117860, 820235720, 1640471440]

約数ペア:

[(1, 1640471440), (2, 820235720), (4, 410117860), (5, 328094288), (8, 205058930), (10, 164047144), (16, 102529465), (17, 96498320), (20, 82023572), (34, 48249160), (40, 41011786), (68, 24124580), (80, 20505893), (85, 19299664), (136, 12062290), (170, 9649832), (272, 6031145), (340, 4824916), (680, 2412458), (1360, 1206229)]