80639840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1344

約数の個数: 96

約数和(自身を含む): 210651840

約数和(自身を除く): 130012000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 340, 368, 391, 460, 544, 680, 736, 782, 920, 1289, 1360, 1564, 1840, 1955, 2578, 2720, 3128, 3680, 3910, 5156, 6256, 6445, 7820, 10312, 12512, 12890, 15640, 20624, 21913, 25780, 29647, 31280, 41248, 43826, 51560, 59294, 62560, 87652, 103120, 109565, 118588, 148235, 175304, 206240, 219130, 237176, 296470, 350608, 438260, 474352, 503999, 592940, 701216, 876520, 948704, 1007998, 1185880, 1753040, 2015996, 2371760, 2519995, 3506080, 4031992, 4743520, 5039990, 8063984, 10079980, 16127968, 20159960, 40319920, 80639840]

約数ペア:

[(1, 80639840), (2, 40319920), (4, 20159960), (5, 16127968), (8, 10079980), (10, 8063984), (16, 5039990), (17, 4743520), (20, 4031992), (23, 3506080), (32, 2519995), (34, 2371760), (40, 2015996), (46, 1753040), (68, 1185880), (80, 1007998), (85, 948704), (92, 876520), (115, 701216), (136, 592940), (160, 503999), (170, 474352), (184, 438260), (230, 350608), (272, 296470), (340, 237176), (368, 219130), (391, 206240), (460, 175304), (544, 148235), (680, 118588), (736, 109565), (782, 103120), (920, 87652), (1289, 62560), (1360, 59294), (1564, 51560), (1840, 43826), (1955, 41248), (2578, 31280), (2720, 29647), (3128, 25780), (3680, 21913), (3910, 20624), (5156, 15640), (6256, 12890), (6445, 12512), (7820, 10312)]