20804532488

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1\times {\mathrm{1567}}^1$

素因数の和:2334

約数の個数: 64

約数和(自身を含む): 40896576000

約数和(自身を除く): 20092043512

約数列:

[1, 2, 4, 8, 29, 58, 89, 116, 178, 232, 356, 643, 712, 1286, 1567, 2572, 2581, 3134, 5144, 5162, 6268, 10324, 12536, 18647, 20648, 37294, 45443, 57227, 74588, 90886, 114454, 139463, 149176, 181772, 228908, 278926, 363544, 457816, 557852, 1007581, 1115704, 1659583, 2015162, 3319166, 4030324, 4044427, 6638332, 8060648, 8088854, 13276664, 16177708, 29219849, 32355416, 58439698, 89674709, 116879396, 179349418, 233758792, 358698836, 717397672, 2600566561, 5201133122, 10402266244, 20804532488]

約数ペア:

[(1, 20804532488), (2, 10402266244), (4, 5201133122), (8, 2600566561), (29, 717397672), (58, 358698836), (89, 233758792), (116, 179349418), (178, 116879396), (232, 89674709), (356, 58439698), (643, 32355416), (712, 29219849), (1286, 16177708), (1567, 13276664), (2572, 8088854), (2581, 8060648), (3134, 6638332), (5144, 4044427), (5162, 4030324), (6268, 3319166), (10324, 2015162), (12536, 1659583), (18647, 1115704), (20648, 1007581), (37294, 557852), (45443, 457816), (57227, 363544), (74588, 278926), (90886, 228908), (114454, 181772), (139463, 149176)]