256372380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 216

約数和(自身を含む): 871416000

約数和(自身を除く): 615043620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 79, 90, 99, 110, 121, 132, 149, 158, 165, 180, 198, 220, 237, 242, 298, 316, 330, 363, 395, 396, 447, 474, 484, 495, 596, 605, 660, 711, 726, 745, 790, 869, 894, 948, 990, 1089, 1185, 1210, 1341, 1422, 1452, 1490, 1580, 1639, 1738, 1788, 1815, 1980, 2178, 2235, 2370, 2420, 2607, 2682, 2844, 2980, 3278, 3476, 3555, 3630, 4345, 4356, 4470, 4740, 4917, 5214, 5364, 5445, 6556, 6705, 7110, 7260, 7821, 8195, 8690, 8940, 9559, 9834, 10428, 10890, 11771, 13035, 13410, 14220, 14751, 15642, 16390, 17380, 18029, 19118, 19668, 21780, 23542, 24585, 26070, 26820, 28677, 29502, 31284, 32780, 35313, 36058, 38236, 39105, 47084, 47795, 49170, 52140, 54087, 57354, 58855, 59004, 70626, 72116, 73755, 78210, 86031, 90145, 95590, 98340, 105939, 108174, 114708, 117710, 129481, 141252, 143385, 147510, 156420, 162261, 172062, 176565, 180290, 191180, 211878, 216348, 235420, 258962, 270435, 286770, 295020, 324522, 344124, 353130, 360580, 388443, 423756, 430155, 517924, 529695, 540870, 573540, 647405, 649044, 706260, 776886, 811305, 860310, 1059390, 1081740, 1165329, 1294810, 1424291, 1553772, 1622610, 1720620, 1942215, 2118780, 2330658, 2589620, 2848582, 3245220, 3884430, 4272873, 4661316, 5697164, 5826645, 7121455, 7768860, 8545746, 11653290, 12818619, 14242910, 17091492, 21364365, 23306580, 25637238, 28485820, 42728730, 51274476, 64093095, 85457460, 128186190, 256372380]

約数ペア:

[(1, 256372380), (2, 128186190), (3, 85457460), (4, 64093095), (5, 51274476), (6, 42728730), (9, 28485820), (10, 25637238), (11, 23306580), (12, 21364365), (15, 17091492), (18, 14242910), (20, 12818619), (22, 11653290), (30, 8545746), (33, 7768860), (36, 7121455), (44, 5826645), (45, 5697164), (55, 4661316), (60, 4272873), (66, 3884430), (79, 3245220), (90, 2848582), (99, 2589620), (110, 2330658), (121, 2118780), (132, 1942215), (149, 1720620), (158, 1622610), (165, 1553772), (180, 1424291), (198, 1294810), (220, 1165329), (237, 1081740), (242, 1059390), (298, 860310), (316, 811305), (330, 776886), (363, 706260), (395, 649044), (396, 647405), (447, 573540), (474, 540870), (484, 529695), (495, 517924), (596, 430155), (605, 423756), (660, 388443), (711, 360580), (726, 353130), (745, 344124), (790, 324522), (869, 295020), (894, 286770), (948, 270435), (990, 258962), (1089, 235420), (1185, 216348), (1210, 211878), (1341, 191180), (1422, 180290), (1452, 176565), (1490, 172062), (1580, 162261), (1639, 156420), (1738, 147510), (1788, 143385), (1815, 141252), (1980, 129481), (2178, 117710), (2235, 114708), (2370, 108174), (2420, 105939), (2607, 98340), (2682, 95590), (2844, 90145), (2980, 86031), (3278, 78210), (3476, 73755), (3555, 72116), (3630, 70626), (4345, 59004), (4356, 58855), (4470, 57354), (4740, 54087), (4917, 52140), (5214, 49170), (5364, 47795), (5445, 47084), (6556, 39105), (6705, 38236), (7110, 36058), (7260, 35313), (7821, 32780), (8195, 31284), (8690, 29502), (8940, 28677), (9559, 26820), (9834, 26070), (10428, 24585), (10890, 23542), (11771, 21780), (13035, 19668), (13410, 19118), (14220, 18029), (14751, 17380), (15642, 16390)]