40820520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 133539840

約数和(自身を除く): 92719320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 137, 156, 191, 195, 260, 274, 312, 382, 390, 411, 520, 548, 573, 685, 764, 780, 822, 955, 1096, 1146, 1370, 1528, 1560, 1644, 1781, 1910, 2055, 2292, 2483, 2740, 2865, 3288, 3562, 3820, 4110, 4584, 4966, 5343, 5480, 5730, 7124, 7449, 7640, 8220, 8905, 9932, 10686, 11460, 12415, 14248, 14898, 16440, 17810, 19864, 21372, 22920, 24830, 26167, 26715, 29796, 35620, 37245, 42744, 49660, 52334, 53430, 59592, 71240, 74490, 78501, 99320, 104668, 106860, 130835, 148980, 157002, 209336, 213720, 261670, 297960, 314004, 340171, 392505, 523340, 628008, 680342, 785010, 1020513, 1046680, 1360684, 1570020, 1700855, 2041026, 2721368, 3140040, 3401710, 4082052, 5102565, 6803420, 8164104, 10205130, 13606840, 20410260, 40820520]

約数ペア:

[(1, 40820520), (2, 20410260), (3, 13606840), (4, 10205130), (5, 8164104), (6, 6803420), (8, 5102565), (10, 4082052), (12, 3401710), (13, 3140040), (15, 2721368), (20, 2041026), (24, 1700855), (26, 1570020), (30, 1360684), (39, 1046680), (40, 1020513), (52, 785010), (60, 680342), (65, 628008), (78, 523340), (104, 392505), (120, 340171), (130, 314004), (137, 297960), (156, 261670), (191, 213720), (195, 209336), (260, 157002), (274, 148980), (312, 130835), (382, 106860), (390, 104668), (411, 99320), (520, 78501), (548, 74490), (573, 71240), (685, 59592), (764, 53430), (780, 52334), (822, 49660), (955, 42744), (1096, 37245), (1146, 35620), (1370, 29796), (1528, 26715), (1560, 26167), (1644, 24830), (1781, 22920), (1910, 21372), (2055, 19864), (2292, 17810), (2483, 16440), (2740, 14898), (2865, 14248), (3288, 12415), (3562, 11460), (3820, 10686), (4110, 9932), (4584, 8905), (4966, 8220), (5343, 7640), (5480, 7449), (5730, 7124)]