18207904640

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{1721}}^1$

素因数の和:2072

約数の個数: 128

約数和(自身を含む): 44430906240

約数和(自身を除く): 26223001600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 271, 305, 320, 488, 542, 610, 640, 976, 1084, 1220, 1355, 1721, 1952, 2168, 2440, 2710, 3442, 3904, 4336, 4880, 5420, 6884, 7808, 8605, 8672, 9760, 10840, 13768, 16531, 17210, 17344, 19520, 21680, 27536, 33062, 34420, 34688, 39040, 43360, 55072, 66124, 68840, 82655, 86720, 104981, 110144, 132248, 137680, 165310, 173440, 209962, 220288, 264496, 275360, 330620, 419924, 466391, 524905, 528992, 550720, 661240, 839848, 932782, 1049810, 1057984, 1101440, 1322480, 1679696, 1865564, 2099620, 2115968, 2331955, 2644960, 3359392, 3731128, 4199240, 4663910, 5289920, 6718784, 7462256, 8398480, 9327820, 10579840, 13437568, 14924512, 16796960, 18655640, 28449851, 29849024, 33593920, 37311280, 56899702, 59698048, 67187840, 74622560, 113799404, 142249255, 149245120, 227598808, 284498510, 298490240, 455197616, 568997020, 910395232, 1137994040, 1820790464, 2275988080, 3641580928, 4551976160, 9103952320, 18207904640]

約数ペア:

[(1, 18207904640), (2, 9103952320), (4, 4551976160), (5, 3641580928), (8, 2275988080), (10, 1820790464), (16, 1137994040), (20, 910395232), (32, 568997020), (40, 455197616), (61, 298490240), (64, 284498510), (80, 227598808), (122, 149245120), (128, 142249255), (160, 113799404), (244, 74622560), (271, 67187840), (305, 59698048), (320, 56899702), (488, 37311280), (542, 33593920), (610, 29849024), (640, 28449851), (976, 18655640), (1084, 16796960), (1220, 14924512), (1355, 13437568), (1721, 10579840), (1952, 9327820), (2168, 8398480), (2440, 7462256), (2710, 6718784), (3442, 5289920), (3904, 4663910), (4336, 4199240), (4880, 3731128), (5420, 3359392), (6884, 2644960), (7808, 2331955), (8605, 2115968), (8672, 2099620), (9760, 1865564), (10840, 1679696), (13768, 1322480), (16531, 1101440), (17210, 1057984), (17344, 1049810), (19520, 932782), (21680, 839848), (27536, 661240), (33062, 550720), (34420, 528992), (34688, 524905), (39040, 466391), (43360, 419924), (55072, 330620), (66124, 275360), (68840, 264496), (82655, 220288), (86720, 209962), (104981, 173440), (110144, 165310), (132248, 137680)]