81127440

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 240

約数和(自身を含む): 296231040

約数和(自身を除く): 215103600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 71, 72, 80, 90, 92, 108, 115, 120, 135, 138, 142, 144, 180, 184, 207, 213, 216, 230, 240, 270, 276, 284, 345, 355, 360, 368, 414, 426, 432, 460, 529, 540, 552, 568, 621, 639, 690, 710, 720, 828, 852, 920, 1035, 1058, 1065, 1080, 1104, 1136, 1242, 1278, 1380, 1420, 1587, 1633, 1656, 1704, 1840, 1917, 2070, 2116, 2130, 2160, 2484, 2556, 2645, 2760, 2840, 3105, 3174, 3195, 3266, 3312, 3408, 3834, 4140, 4232, 4260, 4761, 4899, 4968, 5112, 5290, 5520, 5680, 6210, 6348, 6390, 6532, 7668, 7935, 8165, 8280, 8464, 8520, 9522, 9585, 9798, 9936, 10224, 10580, 12420, 12696, 12780, 13064, 14283, 14697, 15336, 15870, 16330, 16560, 17040, 19044, 19170, 19596, 21160, 23805, 24495, 24840, 25392, 25560, 26128, 28566, 29394, 30672, 31740, 32660, 37559, 38088, 38340, 39192, 42320, 44091, 47610, 48990, 49680, 51120, 57132, 58788, 63480, 65320, 71415, 73485, 75118, 76176, 76680, 78384, 88182, 95220, 97980, 112677, 114264, 117576, 126960, 130640, 142830, 146970, 150236, 153360, 176364, 187795, 190440, 195960, 220455, 225354, 228528, 235152, 285660, 293940, 300472, 338031, 352728, 375590, 380880, 391920, 440910, 450708, 563385, 571320, 587880, 600944, 676062, 705456, 751180, 881820, 901416, 1014093, 1126770, 1142640, 1175760, 1352124, 1502360, 1690155, 1763640, 1802832, 2028186, 2253540, 2704248, 3004720, 3380310, 3527280, 4056372, 4507080, 5070465, 5408496, 6760620, 8112744, 9014160, 10140930, 13521240, 16225488, 20281860, 27042480, 40563720, 81127440]

約数ペア:

[(1, 81127440), (2, 40563720), (3, 27042480), (4, 20281860), (5, 16225488), (6, 13521240), (8, 10140930), (9, 9014160), (10, 8112744), (12, 6760620), (15, 5408496), (16, 5070465), (18, 4507080), (20, 4056372), (23, 3527280), (24, 3380310), (27, 3004720), (30, 2704248), (36, 2253540), (40, 2028186), (45, 1802832), (46, 1763640), (48, 1690155), (54, 1502360), (60, 1352124), (69, 1175760), (71, 1142640), (72, 1126770), (80, 1014093), (90, 901416), (92, 881820), (108, 751180), (115, 705456), (120, 676062), (135, 600944), (138, 587880), (142, 571320), (144, 563385), (180, 450708), (184, 440910), (207, 391920), (213, 380880), (216, 375590), (230, 352728), (240, 338031), (270, 300472), (276, 293940), (284, 285660), (345, 235152), (355, 228528), (360, 225354), (368, 220455), (414, 195960), (426, 190440), (432, 187795), (460, 176364), (529, 153360), (540, 150236), (552, 146970), (568, 142830), (621, 130640), (639, 126960), (690, 117576), (710, 114264), (720, 112677), (828, 97980), (852, 95220), (920, 88182), (1035, 78384), (1058, 76680), (1065, 76176), (1080, 75118), (1104, 73485), (1136, 71415), (1242, 65320), (1278, 63480), (1380, 58788), (1420, 57132), (1587, 51120), (1633, 49680), (1656, 48990), (1704, 47610), (1840, 44091), (1917, 42320), (2070, 39192), (2116, 38340), (2130, 38088), (2160, 37559), (2484, 32660), (2556, 31740), (2645, 30672), (2760, 29394), (2840, 28566), (3105, 26128), (3174, 25560), (3195, 25392), (3266, 24840), (3312, 24495), (3408, 23805), (3834, 21160), (4140, 19596), (4232, 19170), (4260, 19044), (4761, 17040), (4899, 16560), (4968, 16330), (5112, 15870), (5290, 15336), (5520, 14697), (5680, 14283), (6210, 13064), (6348, 12780), (6390, 12696), (6532, 12420), (7668, 10580), (7935, 10224), (8165, 9936), (8280, 9798), (8464, 9585), (8520, 9522)]