256720860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3929}}^1$

素因数の和:3969

約数の個数: 144

約数和(自身を含む): 878119200

約数和(自身を除く): 621398340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 121, 132, 135, 165, 180, 198, 220, 242, 270, 297, 330, 363, 396, 484, 495, 540, 594, 605, 660, 726, 990, 1089, 1188, 1210, 1452, 1485, 1815, 1980, 2178, 2420, 2970, 3267, 3630, 3929, 4356, 5445, 5940, 6534, 7260, 7858, 10890, 11787, 13068, 15716, 16335, 19645, 21780, 23574, 32670, 35361, 39290, 43219, 47148, 58935, 65340, 70722, 78580, 86438, 106083, 117870, 129657, 141444, 172876, 176805, 212166, 216095, 235740, 259314, 353610, 388971, 424332, 432190, 475409, 518628, 530415, 648285, 707220, 777942, 864380, 950818, 1060830, 1166913, 1296570, 1426227, 1555884, 1901636, 1944855, 2121660, 2333826, 2377045, 2593140, 2852454, 3889710, 4278681, 4667652, 4754090, 5704908, 5834565, 7131135, 7779420, 8557362, 9508180, 11669130, 12836043, 14262270, 17114724, 21393405, 23338260, 25672086, 28524540, 42786810, 51344172, 64180215, 85573620, 128360430, 256720860]

約数ペア:

[(1, 256720860), (2, 128360430), (3, 85573620), (4, 64180215), (5, 51344172), (6, 42786810), (9, 28524540), (10, 25672086), (11, 23338260), (12, 21393405), (15, 17114724), (18, 14262270), (20, 12836043), (22, 11669130), (27, 9508180), (30, 8557362), (33, 7779420), (36, 7131135), (44, 5834565), (45, 5704908), (54, 4754090), (55, 4667652), (60, 4278681), (66, 3889710), (90, 2852454), (99, 2593140), (108, 2377045), (110, 2333826), (121, 2121660), (132, 1944855), (135, 1901636), (165, 1555884), (180, 1426227), (198, 1296570), (220, 1166913), (242, 1060830), (270, 950818), (297, 864380), (330, 777942), (363, 707220), (396, 648285), (484, 530415), (495, 518628), (540, 475409), (594, 432190), (605, 424332), (660, 388971), (726, 353610), (990, 259314), (1089, 235740), (1188, 216095), (1210, 212166), (1452, 176805), (1485, 172876), (1815, 141444), (1980, 129657), (2178, 117870), (2420, 106083), (2970, 86438), (3267, 78580), (3630, 70722), (3929, 65340), (4356, 58935), (5445, 47148), (5940, 43219), (6534, 39290), (7260, 35361), (7858, 32670), (10890, 23574), (11787, 21780), (13068, 19645), (15716, 16335)]