644911262720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^2\times {\mathrm{131071}}^1$

素因数の和:131158

約数の個数: 132

約数和(自身を含む): 1598557519872

約数和(自身を除く): 953646257152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 961, 992, 1024, 1240, 1280, 1922, 1984, 2480, 2560, 3844, 3968, 4805, 4960, 5120, 7688, 7936, 9610, 9920, 15376, 15872, 19220, 19840, 30752, 31744, 38440, 39680, 61504, 76880, 79360, 123008, 131071, 153760, 158720, 246016, 262142, 307520, 492032, 524284, 615040, 655355, 984064, 1048568, 1230080, 1310710, 2097136, 2460160, 2621420, 4063201, 4194272, 4920320, 5242840, 8126402, 8388544, 10485680, 16252804, 16777088, 20316005, 20971360, 32505608, 33554176, 40632010, 41942720, 65011216, 67108352, 81264020, 83885440, 125959231, 130022432, 134216704, 162528040, 167770880, 251918462, 260044864, 325056080, 335541760, 503836924, 520089728, 629796155, 650112160, 671083520, 1007673848, 1040179456, 1259592310, 1300224320, 2015347696, 2080358912, 2519184620, 2600448640, 4030695392, 4160717824, 5038369240, 5200897280, 8061390784, 10076738480, 10401794560, 16122781568, 20153476960, 20803589120, 32245563136, 40306953920, 64491126272, 80613907840, 128982252544, 161227815680, 322455631360, 644911262720]

約数ペア:

[(1, 644911262720), (2, 322455631360), (4, 161227815680), (5, 128982252544), (8, 80613907840), (10, 64491126272), (16, 40306953920), (20, 32245563136), (31, 20803589120), (32, 20153476960), (40, 16122781568), (62, 10401794560), (64, 10076738480), (80, 8061390784), (124, 5200897280), (128, 5038369240), (155, 4160717824), (160, 4030695392), (248, 2600448640), (256, 2519184620), (310, 2080358912), (320, 2015347696), (496, 1300224320), (512, 1259592310), (620, 1040179456), (640, 1007673848), (961, 671083520), (992, 650112160), (1024, 629796155), (1240, 520089728), (1280, 503836924), (1922, 335541760), (1984, 325056080), (2480, 260044864), (2560, 251918462), (3844, 167770880), (3968, 162528040), (4805, 134216704), (4960, 130022432), (5120, 125959231), (7688, 83885440), (7936, 81264020), (9610, 67108352), (9920, 65011216), (15376, 41942720), (15872, 40632010), (19220, 33554176), (19840, 32505608), (30752, 20971360), (31744, 20316005), (38440, 16777088), (39680, 16252804), (61504, 10485680), (76880, 8388544), (79360, 8126402), (123008, 5242840), (131071, 4920320), (153760, 4194272), (158720, 4063201), (246016, 2621420), (262142, 2460160), (307520, 2097136), (492032, 1310710), (524284, 1230080), (615040, 1048568), (655355, 984064)]