1997486240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1567}}^1$

素因数の和:1870

約数の個数: 96

約数和(自身を含む): 4893364224

約数和(自身を除く): 2895877984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 257, 310, 496, 514, 620, 992, 1028, 1240, 1285, 1567, 2056, 2480, 2570, 3134, 4112, 4960, 5140, 6268, 7835, 7967, 8224, 10280, 12536, 15670, 15934, 20560, 25072, 31340, 31868, 39835, 41120, 48577, 50144, 62680, 63736, 79670, 97154, 125360, 127472, 159340, 194308, 242885, 250720, 254944, 318680, 388616, 402719, 485770, 637360, 777232, 805438, 971540, 1274720, 1554464, 1610876, 1943080, 2013595, 3221752, 3886160, 4027190, 6443504, 7772320, 8054380, 12484289, 12887008, 16108760, 24968578, 32217520, 49937156, 62421445, 64435040, 99874312, 124842890, 199748624, 249685780, 399497248, 499371560, 998743120, 1997486240]

約数ペア:

[(1, 1997486240), (2, 998743120), (4, 499371560), (5, 399497248), (8, 249685780), (10, 199748624), (16, 124842890), (20, 99874312), (31, 64435040), (32, 62421445), (40, 49937156), (62, 32217520), (80, 24968578), (124, 16108760), (155, 12887008), (160, 12484289), (248, 8054380), (257, 7772320), (310, 6443504), (496, 4027190), (514, 3886160), (620, 3221752), (992, 2013595), (1028, 1943080), (1240, 1610876), (1285, 1554464), (1567, 1274720), (2056, 971540), (2480, 805438), (2570, 777232), (3134, 637360), (4112, 485770), (4960, 402719), (5140, 388616), (6268, 318680), (7835, 254944), (7967, 250720), (8224, 242885), (10280, 194308), (12536, 159340), (15670, 127472), (15934, 125360), (20560, 97154), (25072, 79670), (31340, 63736), (31868, 62680), (39835, 50144), (41120, 48577)]