81273720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2677}}^1$

素因数の和:2725

約数の個数: 128

約数和(自身を含む): 277655040

約数和(自身を除く): 196381320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 690, 759, 920, 1012, 1265, 1320, 1380, 1518, 2024, 2530, 2677, 2760, 3036, 3795, 5060, 5354, 6072, 7590, 8031, 10120, 10708, 13385, 15180, 16062, 21416, 26770, 29447, 30360, 32124, 40155, 53540, 58894, 61571, 64248, 80310, 88341, 107080, 117788, 123142, 147235, 160620, 176682, 184713, 235576, 246284, 294470, 307855, 321240, 353364, 369426, 441705, 492568, 588940, 615710, 677281, 706728, 738852, 883410, 923565, 1177880, 1231420, 1354562, 1477704, 1766820, 1847130, 2031843, 2462840, 2709124, 3386405, 3533640, 3694260, 4063686, 5418248, 6772810, 7388520, 8127372, 10159215, 13545620, 16254744, 20318430, 27091240, 40636860, 81273720]

約数ペア:

[(1, 81273720), (2, 40636860), (3, 27091240), (4, 20318430), (5, 16254744), (6, 13545620), (8, 10159215), (10, 8127372), (11, 7388520), (12, 6772810), (15, 5418248), (20, 4063686), (22, 3694260), (23, 3533640), (24, 3386405), (30, 2709124), (33, 2462840), (40, 2031843), (44, 1847130), (46, 1766820), (55, 1477704), (60, 1354562), (66, 1231420), (69, 1177880), (88, 923565), (92, 883410), (110, 738852), (115, 706728), (120, 677281), (132, 615710), (138, 588940), (165, 492568), (184, 441705), (220, 369426), (230, 353364), (253, 321240), (264, 307855), (276, 294470), (330, 246284), (345, 235576), (440, 184713), (460, 176682), (506, 160620), (552, 147235), (660, 123142), (690, 117788), (759, 107080), (920, 88341), (1012, 80310), (1265, 64248), (1320, 61571), (1380, 58894), (1518, 53540), (2024, 40155), (2530, 32124), (2677, 30360), (2760, 29447), (3036, 26770), (3795, 21416), (5060, 16062), (5354, 15180), (6072, 13385), (7590, 10708), (8031, 10120)]