128739280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 160

約数和(自身を含む): 336549888

約数和(自身を除く): 207810608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 37, 40, 46, 61, 62, 74, 80, 92, 115, 122, 124, 148, 155, 184, 185, 230, 244, 248, 296, 305, 310, 368, 370, 460, 488, 496, 592, 610, 620, 713, 740, 851, 920, 976, 1147, 1220, 1240, 1403, 1426, 1480, 1702, 1840, 1891, 2257, 2294, 2440, 2480, 2806, 2852, 2960, 3404, 3565, 3782, 4255, 4514, 4588, 4880, 5612, 5704, 5735, 6808, 7015, 7130, 7564, 8510, 9028, 9176, 9455, 11224, 11285, 11408, 11470, 13616, 14030, 14260, 15128, 17020, 18056, 18352, 18910, 22448, 22570, 22940, 26381, 28060, 28520, 30256, 34040, 36112, 37820, 43493, 45140, 45880, 51911, 52762, 56120, 57040, 68080, 69967, 75640, 86986, 90280, 91760, 103822, 105524, 112240, 131905, 139934, 151280, 173972, 180560, 207644, 211048, 217465, 259555, 263810, 279868, 347944, 349835, 415288, 422096, 434930, 519110, 527620, 559736, 695888, 699670, 830576, 869860, 1038220, 1055240, 1119472, 1399340, 1609241, 1739720, 2076440, 2110480, 2798680, 3218482, 3479440, 4152880, 5597360, 6436964, 8046205, 12873928, 16092410, 25747856, 32184820, 64369640, 128739280]

約数ペア:

[(1, 128739280), (2, 64369640), (4, 32184820), (5, 25747856), (8, 16092410), (10, 12873928), (16, 8046205), (20, 6436964), (23, 5597360), (31, 4152880), (37, 3479440), (40, 3218482), (46, 2798680), (61, 2110480), (62, 2076440), (74, 1739720), (80, 1609241), (92, 1399340), (115, 1119472), (122, 1055240), (124, 1038220), (148, 869860), (155, 830576), (184, 699670), (185, 695888), (230, 559736), (244, 527620), (248, 519110), (296, 434930), (305, 422096), (310, 415288), (368, 349835), (370, 347944), (460, 279868), (488, 263810), (496, 259555), (592, 217465), (610, 211048), (620, 207644), (713, 180560), (740, 173972), (851, 151280), (920, 139934), (976, 131905), (1147, 112240), (1220, 105524), (1240, 103822), (1403, 91760), (1426, 90280), (1480, 86986), (1702, 75640), (1840, 69967), (1891, 68080), (2257, 57040), (2294, 56120), (2440, 52762), (2480, 51911), (2806, 45880), (2852, 45140), (2960, 43493), (3404, 37820), (3565, 36112), (3782, 34040), (4255, 30256), (4514, 28520), (4588, 28060), (4880, 26381), (5612, 22940), (5704, 22570), (5735, 22448), (6808, 18910), (7015, 18352), (7130, 18056), (7564, 17020), (8510, 15128), (9028, 14260), (9176, 14030), (9455, 13616), (11224, 11470), (11285, 11408)]