20512957588

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{383}}^1\times {\mathrm{433}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 38679524352

約数和(自身を除く): 18166566764

約数列:

[1, 2, 4, 17, 34, 68, 107, 214, 289, 383, 428, 433, 578, 766, 866, 1156, 1532, 1732, 1819, 3638, 6511, 7276, 7361, 13022, 14722, 26044, 29444, 30923, 40981, 46331, 61846, 81962, 92662, 110687, 123692, 125137, 163924, 165839, 185324, 221374, 250274, 331678, 442748, 500548, 663356, 696677, 787627, 1393354, 1575254, 2786708, 2819263, 3150508, 5638526, 11277052, 11843509, 13389659, 17744773, 23687018, 26779318, 35489546, 47374036, 47927471, 53558636, 70979092, 95854942, 191709884, 301661141, 603322282, 1206644564, 5128239397, 10256478794, 20512957588]

約数ペア:

[(1, 20512957588), (2, 10256478794), (4, 5128239397), (17, 1206644564), (34, 603322282), (68, 301661141), (107, 191709884), (214, 95854942), (289, 70979092), (383, 53558636), (428, 47927471), (433, 47374036), (578, 35489546), (766, 26779318), (866, 23687018), (1156, 17744773), (1532, 13389659), (1732, 11843509), (1819, 11277052), (3638, 5638526), (6511, 3150508), (7276, 2819263), (7361, 2786708), (13022, 1575254), (14722, 1393354), (26044, 787627), (29444, 696677), (30923, 663356), (40981, 500548), (46331, 442748), (61846, 331678), (81962, 250274), (92662, 221374), (110687, 185324), (123692, 165839), (125137, 163924)]