40981860

素因数分解:

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

素因数の和:578

約数の個数: 144

約数和(自身を含む): 136805760

約数和(自身を除く): 95823900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 276, 285, 342, 345, 380, 414, 437, 460, 521, 570, 684, 690, 828, 855, 874, 1035, 1042, 1140, 1311, 1380, 1563, 1710, 1748, 2070, 2084, 2185, 2605, 2622, 3126, 3420, 3933, 4140, 4370, 4689, 5210, 5244, 6252, 6555, 7815, 7866, 8740, 9378, 9899, 10420, 11983, 13110, 15630, 15732, 18756, 19665, 19798, 23445, 23966, 26220, 29697, 31260, 35949, 39330, 39596, 46890, 47932, 49495, 59394, 59915, 71898, 78660, 89091, 93780, 98990, 107847, 118788, 119830, 143796, 148485, 178182, 179745, 197980, 215694, 227677, 239660, 296970, 356364, 359490, 431388, 445455, 455354, 539235, 593940, 683031, 718980, 890910, 910708, 1078470, 1138385, 1366062, 1781820, 2049093, 2156940, 2276770, 2732124, 3415155, 4098186, 4553540, 6830310, 8196372, 10245465, 13660620, 20490930, 40981860]

約数ペア:

[(1, 40981860), (2, 20490930), (3, 13660620), (4, 10245465), (5, 8196372), (6, 6830310), (9, 4553540), (10, 4098186), (12, 3415155), (15, 2732124), (18, 2276770), (19, 2156940), (20, 2049093), (23, 1781820), (30, 1366062), (36, 1138385), (38, 1078470), (45, 910708), (46, 890910), (57, 718980), (60, 683031), (69, 593940), (76, 539235), (90, 455354), (92, 445455), (95, 431388), (114, 359490), (115, 356364), (138, 296970), (171, 239660), (180, 227677), (190, 215694), (207, 197980), (228, 179745), (230, 178182), (276, 148485), (285, 143796), (342, 119830), (345, 118788), (380, 107847), (414, 98990), (437, 93780), (460, 89091), (521, 78660), (570, 71898), (684, 59915), (690, 59394), (828, 49495), (855, 47932), (874, 46890), (1035, 39596), (1042, 39330), (1140, 35949), (1311, 31260), (1380, 29697), (1563, 26220), (1710, 23966), (1748, 23445), (2070, 19798), (2084, 19665), (2185, 18756), (2605, 15732), (2622, 15630), (3126, 13110), (3420, 11983), (3933, 10420), (4140, 9899), (4370, 9378), (4689, 8740), (5210, 7866), (5244, 7815), (6252, 6555)]