40978440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 128

約数和(自身を含む): 143856000

約数和(自身を除く): 102877560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 1997, 2052, 2280, 2565, 3420, 3994, 4104, 5130, 5991, 6840, 7988, 9985, 10260, 11982, 15976, 17973, 19970, 20520, 23964, 29955, 35946, 37943, 39940, 47928, 53919, 59910, 71892, 75886, 79880, 89865, 107838, 113829, 119820, 143784, 151772, 179730, 189715, 215676, 227658, 239640, 269595, 303544, 341487, 359460, 379430, 431352, 455316, 539190, 569145, 682974, 718920, 758860, 910632, 1024461, 1078380, 1138290, 1365948, 1517720, 1707435, 2048922, 2156760, 2276580, 2731896, 3414870, 4097844, 4553160, 5122305, 6829740, 8195688, 10244610, 13659480, 20489220, 40978440]

約数ペア:

[(1, 40978440), (2, 20489220), (3, 13659480), (4, 10244610), (5, 8195688), (6, 6829740), (8, 5122305), (9, 4553160), (10, 4097844), (12, 3414870), (15, 2731896), (18, 2276580), (19, 2156760), (20, 2048922), (24, 1707435), (27, 1517720), (30, 1365948), (36, 1138290), (38, 1078380), (40, 1024461), (45, 910632), (54, 758860), (57, 718920), (60, 682974), (72, 569145), (76, 539190), (90, 455316), (95, 431352), (108, 379430), (114, 359460), (120, 341487), (135, 303544), (152, 269595), (171, 239640), (180, 227658), (190, 215676), (216, 189715), (228, 179730), (270, 151772), (285, 143784), (342, 119820), (360, 113829), (380, 107838), (456, 89865), (513, 79880), (540, 75886), (570, 71892), (684, 59910), (760, 53919), (855, 47928), (1026, 39940), (1080, 37943), (1140, 35946), (1368, 29955), (1710, 23964), (1997, 20520), (2052, 19970), (2280, 17973), (2565, 15976), (3420, 11982), (3994, 10260), (4104, 9985), (5130, 7988), (5991, 6840)]