209054080

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:348

約数の個数: 128

約数和(自身を含む): 530530560

約数和(自身を除く): 321476480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 257, 310, 320, 328, 410, 496, 514, 620, 640, 656, 820, 992, 1028, 1240, 1271, 1285, 1312, 1640, 1984, 2056, 2480, 2542, 2570, 2624, 3280, 3968, 4112, 4960, 5084, 5140, 5248, 6355, 6560, 7967, 8224, 9920, 10168, 10280, 10537, 12710, 13120, 15934, 16448, 19840, 20336, 20560, 21074, 25420, 26240, 31868, 32896, 39835, 40672, 41120, 42148, 50840, 52685, 63736, 79670, 81344, 82240, 84296, 101680, 105370, 127472, 159340, 162688, 164480, 168592, 203360, 210740, 254944, 318680, 326647, 337184, 406720, 421480, 509888, 637360, 653294, 674368, 813440, 842960, 1019776, 1274720, 1306588, 1348736, 1633235, 1685920, 2549440, 2613176, 3266470, 3371840, 5098880, 5226352, 6532940, 6743680, 10452704, 13065880, 20905408, 26131760, 41810816, 52263520, 104527040, 209054080]

約数ペア:

[(1, 209054080), (2, 104527040), (4, 52263520), (5, 41810816), (8, 26131760), (10, 20905408), (16, 13065880), (20, 10452704), (31, 6743680), (32, 6532940), (40, 5226352), (41, 5098880), (62, 3371840), (64, 3266470), (80, 2613176), (82, 2549440), (124, 1685920), (128, 1633235), (155, 1348736), (160, 1306588), (164, 1274720), (205, 1019776), (248, 842960), (257, 813440), (310, 674368), (320, 653294), (328, 637360), (410, 509888), (496, 421480), (514, 406720), (620, 337184), (640, 326647), (656, 318680), (820, 254944), (992, 210740), (1028, 203360), (1240, 168592), (1271, 164480), (1285, 162688), (1312, 159340), (1640, 127472), (1984, 105370), (2056, 101680), (2480, 84296), (2542, 82240), (2570, 81344), (2624, 79670), (3280, 63736), (3968, 52685), (4112, 50840), (4960, 42148), (5084, 41120), (5140, 40672), (5248, 39835), (6355, 32896), (6560, 31868), (7967, 26240), (8224, 25420), (9920, 21074), (10168, 20560), (10280, 20336), (10537, 19840), (12710, 16448), (13120, 15934)]