81945936

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:585

約数の個数: 120

約数和(自身を含む): 245862240

約数和(自身を除く): 163916304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 61, 72, 76, 114, 122, 144, 152, 171, 183, 228, 244, 304, 342, 366, 456, 488, 491, 549, 684, 732, 912, 976, 982, 1098, 1159, 1368, 1464, 1473, 1964, 2196, 2318, 2736, 2928, 2946, 3477, 3928, 4392, 4419, 4636, 5892, 6954, 7856, 8784, 8838, 9272, 9329, 10431, 11784, 13908, 17676, 18544, 18658, 20862, 23568, 27816, 27987, 29951, 35352, 37316, 41724, 55632, 55974, 59902, 70704, 74632, 83448, 83961, 89853, 111948, 119804, 149264, 166896, 167922, 179706, 223896, 239608, 269559, 335844, 359412, 447792, 479216, 539118, 569069, 671688, 718824, 1078236, 1138138, 1343376, 1437648, 1707207, 2156472, 2276276, 3414414, 4312944, 4552552, 5121621, 6828828, 9105104, 10243242, 13657656, 20486484, 27315312, 40972968, 81945936]

約数ペア:

[(1, 81945936), (2, 40972968), (3, 27315312), (4, 20486484), (6, 13657656), (8, 10243242), (9, 9105104), (12, 6828828), (16, 5121621), (18, 4552552), (19, 4312944), (24, 3414414), (36, 2276276), (38, 2156472), (48, 1707207), (57, 1437648), (61, 1343376), (72, 1138138), (76, 1078236), (114, 718824), (122, 671688), (144, 569069), (152, 539118), (171, 479216), (183, 447792), (228, 359412), (244, 335844), (304, 269559), (342, 239608), (366, 223896), (456, 179706), (488, 167922), (491, 166896), (549, 149264), (684, 119804), (732, 111948), (912, 89853), (976, 83961), (982, 83448), (1098, 74632), (1159, 70704), (1368, 59902), (1464, 55974), (1473, 55632), (1964, 41724), (2196, 37316), (2318, 35352), (2736, 29951), (2928, 27987), (2946, 27816), (3477, 23568), (3928, 20862), (4392, 18658), (4419, 18544), (4636, 17676), (5892, 13908), (6954, 11784), (7856, 10431), (8784, 9329), (8838, 9272)]