28520784

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 84349512

約数和(自身を除く): 55828728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 53, 72, 74, 101, 106, 111, 144, 148, 159, 202, 212, 222, 296, 303, 318, 333, 404, 424, 444, 477, 592, 606, 636, 666, 808, 848, 888, 909, 954, 1212, 1272, 1332, 1616, 1776, 1818, 1908, 1961, 2424, 2544, 2664, 3636, 3737, 3816, 3922, 4848, 5328, 5353, 5883, 7272, 7474, 7632, 7844, 10706, 11211, 11766, 14544, 14948, 15688, 16059, 17649, 21412, 22422, 23532, 29896, 31376, 32118, 33633, 35298, 42824, 44844, 47064, 48177, 59792, 64236, 67266, 70596, 85648, 89688, 94128, 96354, 128472, 134532, 141192, 179376, 192708, 198061, 256944, 269064, 282384, 385416, 396122, 538128, 594183, 770832, 792244, 1188366, 1584488, 1782549, 2376732, 3168976, 3565098, 4753464, 7130196, 9506928, 14260392, 28520784]

約数ペア:

[(1, 28520784), (2, 14260392), (3, 9506928), (4, 7130196), (6, 4753464), (8, 3565098), (9, 3168976), (12, 2376732), (16, 1782549), (18, 1584488), (24, 1188366), (36, 792244), (37, 770832), (48, 594183), (53, 538128), (72, 396122), (74, 385416), (101, 282384), (106, 269064), (111, 256944), (144, 198061), (148, 192708), (159, 179376), (202, 141192), (212, 134532), (222, 128472), (296, 96354), (303, 94128), (318, 89688), (333, 85648), (404, 70596), (424, 67266), (444, 64236), (477, 59792), (592, 48177), (606, 47064), (636, 44844), (666, 42824), (808, 35298), (848, 33633), (888, 32118), (909, 31376), (954, 29896), (1212, 23532), (1272, 22422), (1332, 21412), (1616, 17649), (1776, 16059), (1818, 15688), (1908, 14948), (1961, 14544), (2424, 11766), (2544, 11211), (2664, 10706), (3636, 7844), (3737, 7632), (3816, 7474), (3922, 7272), (4848, 5883), (5328, 5353)]