201405760

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 112

約数和(自身を含む): 503285760

約数和(自身を除く): 301880000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 155, 158, 160, 248, 257, 310, 316, 320, 395, 496, 514, 620, 632, 790, 992, 1028, 1240, 1264, 1285, 1580, 1984, 2056, 2449, 2480, 2528, 2570, 3160, 4112, 4898, 4960, 5056, 5140, 6320, 7967, 8224, 9796, 9920, 10280, 12245, 12640, 15934, 16448, 19592, 20303, 20560, 24490, 25280, 31868, 39184, 39835, 40606, 41120, 48980, 63736, 78368, 79670, 81212, 82240, 97960, 101515, 127472, 156736, 159340, 162424, 195920, 203030, 254944, 318680, 324848, 391840, 406060, 509888, 629393, 637360, 649696, 783680, 812120, 1258786, 1274720, 1299392, 1624240, 2517572, 2549440, 3146965, 3248480, 5035144, 6293930, 6496960, 10070288, 12587860, 20140576, 25175720, 40281152, 50351440, 100702880, 201405760]

約数ペア:

[(1, 201405760), (2, 100702880), (4, 50351440), (5, 40281152), (8, 25175720), (10, 20140576), (16, 12587860), (20, 10070288), (31, 6496960), (32, 6293930), (40, 5035144), (62, 3248480), (64, 3146965), (79, 2549440), (80, 2517572), (124, 1624240), (155, 1299392), (158, 1274720), (160, 1258786), (248, 812120), (257, 783680), (310, 649696), (316, 637360), (320, 629393), (395, 509888), (496, 406060), (514, 391840), (620, 324848), (632, 318680), (790, 254944), (992, 203030), (1028, 195920), (1240, 162424), (1264, 159340), (1285, 156736), (1580, 127472), (1984, 101515), (2056, 97960), (2449, 82240), (2480, 81212), (2528, 79670), (2570, 78368), (3160, 63736), (4112, 48980), (4898, 41120), (4960, 40606), (5056, 39835), (5140, 39184), (6320, 31868), (7967, 25280), (8224, 24490), (9796, 20560), (9920, 20303), (10280, 19592), (12245, 16448), (12640, 15934)]