20243555488

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{20681}}^1$

素因数の和:20898

約数の個数: 72

約数和(自身を含む): 43396585596

約数和(自身を除く): 23153030108

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 181, 208, 338, 362, 416, 676, 724, 1352, 1448, 2353, 2704, 2896, 4706, 5408, 5792, 9412, 18824, 20681, 30589, 37648, 41362, 61178, 75296, 82724, 122356, 165448, 244712, 268853, 330896, 489424, 537706, 661792, 978848, 1075412, 2150824, 3495089, 3743261, 4301648, 6990178, 7486522, 8603296, 13980356, 14973044, 27960712, 29946088, 48662393, 55921424, 59892176, 97324786, 111842848, 119784352, 194649572, 389299144, 632611109, 778598288, 1265222218, 1557196576, 2530444436, 5060888872, 10121777744, 20243555488]

約数ペア:

[(1, 20243555488), (2, 10121777744), (4, 5060888872), (8, 2530444436), (13, 1557196576), (16, 1265222218), (26, 778598288), (32, 632611109), (52, 389299144), (104, 194649572), (169, 119784352), (181, 111842848), (208, 97324786), (338, 59892176), (362, 55921424), (416, 48662393), (676, 29946088), (724, 27960712), (1352, 14973044), (1448, 13980356), (2353, 8603296), (2704, 7486522), (2896, 6990178), (4706, 4301648), (5408, 3743261), (5792, 3495089), (9412, 2150824), (18824, 1075412), (20681, 978848), (30589, 661792), (37648, 537706), (41362, 489424), (61178, 330896), (75296, 268853), (82724, 244712), (122356, 165448)]