81963720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 192

約数和(自身を含む): 293155200

約数和(自身を除く): 211191480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 138, 152, 171, 180, 184, 190, 207, 228, 230, 276, 285, 342, 345, 360, 380, 414, 437, 456, 460, 521, 552, 570, 684, 690, 760, 828, 855, 874, 920, 1035, 1042, 1140, 1311, 1368, 1380, 1563, 1656, 1710, 1748, 2070, 2084, 2185, 2280, 2605, 2622, 2760, 3126, 3420, 3496, 3933, 4140, 4168, 4370, 4689, 5210, 5244, 6252, 6555, 6840, 7815, 7866, 8280, 8740, 9378, 9899, 10420, 10488, 11983, 12504, 13110, 15630, 15732, 17480, 18756, 19665, 19798, 20840, 23445, 23966, 26220, 29697, 31260, 31464, 35949, 37512, 39330, 39596, 46890, 47932, 49495, 52440, 59394, 59915, 62520, 71898, 78660, 79192, 89091, 93780, 95864, 98990, 107847, 118788, 119830, 143796, 148485, 157320, 178182, 179745, 187560, 197980, 215694, 227677, 237576, 239660, 287592, 296970, 356364, 359490, 395960, 431388, 445455, 455354, 479320, 539235, 593940, 683031, 712728, 718980, 862776, 890910, 910708, 1078470, 1138385, 1187880, 1366062, 1437960, 1781820, 1821416, 2049093, 2156940, 2276770, 2732124, 3415155, 3563640, 4098186, 4313880, 4553540, 5464248, 6830310, 8196372, 9107080, 10245465, 13660620, 16392744, 20490930, 27321240, 40981860, 81963720]

約数ペア:

[(1, 81963720), (2, 40981860), (3, 27321240), (4, 20490930), (5, 16392744), (6, 13660620), (8, 10245465), (9, 9107080), (10, 8196372), (12, 6830310), (15, 5464248), (18, 4553540), (19, 4313880), (20, 4098186), (23, 3563640), (24, 3415155), (30, 2732124), (36, 2276770), (38, 2156940), (40, 2049093), (45, 1821416), (46, 1781820), (57, 1437960), (60, 1366062), (69, 1187880), (72, 1138385), (76, 1078470), (90, 910708), (92, 890910), (95, 862776), (114, 718980), (115, 712728), (120, 683031), (138, 593940), (152, 539235), (171, 479320), (180, 455354), (184, 445455), (190, 431388), (207, 395960), (228, 359490), (230, 356364), (276, 296970), (285, 287592), (342, 239660), (345, 237576), (360, 227677), (380, 215694), (414, 197980), (437, 187560), (456, 179745), (460, 178182), (521, 157320), (552, 148485), (570, 143796), (684, 119830), (690, 118788), (760, 107847), (828, 98990), (855, 95864), (874, 93780), (920, 89091), (1035, 79192), (1042, 78660), (1140, 71898), (1311, 62520), (1368, 59915), (1380, 59394), (1563, 52440), (1656, 49495), (1710, 47932), (1748, 46890), (2070, 39596), (2084, 39330), (2185, 37512), (2280, 35949), (2605, 31464), (2622, 31260), (2760, 29697), (3126, 26220), (3420, 23966), (3496, 23445), (3933, 20840), (4140, 19798), (4168, 19665), (4370, 18756), (4689, 17480), (5210, 15732), (5244, 15630), (6252, 13110), (6555, 12504), (6840, 11983), (7815, 10488), (7866, 10420), (8280, 9899), (8740, 9378)]