20292669440

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31963}}^1$

素因数の和:32023

約数の個数: 104

約数和(自身を含む): 50268887808

約数和(自身を除く): 29976218368

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, 992, 1024, 1240, 1280, 1984, 2048, 2480, 2560, 3968, 4096, 4960, 5120, 7936, 9920, 10240, 15872, 19840, 20480, 31744, 31963, 39680, 63488, 63926, 79360, 126976, 127852, 158720, 159815, 255704, 317440, 319630, 511408, 634880, 639260, 990853, 1022816, 1278520, 1981706, 2045632, 2557040, 3963412, 4091264, 4954265, 5114080, 7926824, 8182528, 9908530, 10228160, 15853648, 16365056, 19817060, 20456320, 31707296, 32730112, 39634120, 40912640, 63414592, 65460224, 79268240, 81825280, 126829184, 130920448, 158536480, 163650560, 253658368, 317072960, 327301120, 507316736, 634145920, 654602240, 1014633472, 1268291840, 2029266944, 2536583680, 4058533888, 5073167360, 10146334720, 20292669440]

約数ペア:

[(1, 20292669440), (2, 10146334720), (4, 5073167360), (5, 4058533888), (8, 2536583680), (10, 2029266944), (16, 1268291840), (20, 1014633472), (31, 654602240), (32, 634145920), (40, 507316736), (62, 327301120), (64, 317072960), (80, 253658368), (124, 163650560), (128, 158536480), (155, 130920448), (160, 126829184), (248, 81825280), (256, 79268240), (310, 65460224), (320, 63414592), (496, 40912640), (512, 39634120), (620, 32730112), (640, 31707296), (992, 20456320), (1024, 19817060), (1240, 16365056), (1280, 15853648), (1984, 10228160), (2048, 9908530), (2480, 8182528), (2560, 7926824), (3968, 5114080), (4096, 4954265), (4960, 4091264), (5120, 3963412), (7936, 2557040), (9920, 2045632), (10240, 1981706), (15872, 1278520), (19840, 1022816), (20480, 990853), (31744, 639260), (31963, 634880), (39680, 511408), (63488, 319630), (63926, 317440), (79360, 255704), (126976, 159815), (127852, 158720)]