81437040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5953}}^1$

素因数の和:5991

約数の個数: 120

約数和(自身を含む): 287935440

約数和(自身を除く): 206498400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 5953, 6840, 11906, 13680, 17859, 23812, 29765, 35718, 47624, 53577, 59530, 71436, 89295, 95248, 107154, 113107, 119060, 142872, 178590, 214308, 226214, 238120, 267885, 285744, 339321, 357180, 428616, 452428, 476240, 535770, 565535, 678642, 714360, 857232, 904856, 1017963, 1071540, 1131070, 1357284, 1428720, 1696605, 1809712, 2035926, 2143080, 2262140, 2714568, 3393210, 4071852, 4286160, 4524280, 5089815, 5429136, 6786420, 8143704, 9048560, 10179630, 13572840, 16287408, 20359260, 27145680, 40718520, 81437040]

約数ペア:

[(1, 81437040), (2, 40718520), (3, 27145680), (4, 20359260), (5, 16287408), (6, 13572840), (8, 10179630), (9, 9048560), (10, 8143704), (12, 6786420), (15, 5429136), (16, 5089815), (18, 4524280), (19, 4286160), (20, 4071852), (24, 3393210), (30, 2714568), (36, 2262140), (38, 2143080), (40, 2035926), (45, 1809712), (48, 1696605), (57, 1428720), (60, 1357284), (72, 1131070), (76, 1071540), (80, 1017963), (90, 904856), (95, 857232), (114, 714360), (120, 678642), (144, 565535), (152, 535770), (171, 476240), (180, 452428), (190, 428616), (228, 357180), (240, 339321), (285, 285744), (304, 267885), (342, 238120), (360, 226214), (380, 214308), (456, 178590), (570, 142872), (684, 119060), (720, 113107), (760, 107154), (855, 95248), (912, 89295), (1140, 71436), (1368, 59530), (1520, 53577), (1710, 47624), (2280, 35718), (2736, 29765), (3420, 23812), (4560, 17859), (5953, 13680), (6840, 11906)]