261781260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 192

約数和(自身を含む): 833172480

約数和(自身を除く): 571391220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 71, 78, 87, 116, 130, 142, 145, 156, 163, 174, 195, 213, 260, 284, 290, 326, 348, 355, 377, 390, 426, 435, 489, 580, 652, 710, 754, 780, 815, 852, 870, 923, 978, 1065, 1131, 1420, 1508, 1630, 1740, 1846, 1885, 1956, 2059, 2119, 2130, 2262, 2445, 2769, 3260, 3692, 3770, 4118, 4238, 4260, 4524, 4615, 4727, 4890, 5538, 5655, 6177, 6357, 7540, 8236, 8476, 9230, 9454, 9780, 10295, 10595, 11076, 11310, 11573, 12354, 12714, 13845, 14181, 18460, 18908, 20590, 21190, 22620, 23146, 23635, 24708, 25428, 26767, 27690, 28362, 30885, 31785, 34719, 41180, 42380, 46292, 47270, 53534, 55380, 56724, 57865, 61451, 61770, 63570, 69438, 70905, 80301, 94540, 107068, 115730, 122902, 123540, 127140, 133835, 138876, 141810, 150449, 160602, 173595, 184353, 231460, 245804, 267670, 283620, 300898, 307255, 321204, 335617, 347190, 368706, 401505, 451347, 535340, 601796, 614510, 671234, 694380, 737412, 752245, 803010, 902694, 921765, 1006851, 1229020, 1342468, 1504490, 1606020, 1678085, 1805388, 1843530, 2013702, 2256735, 3008980, 3356170, 3687060, 4027404, 4363021, 4513470, 5034255, 6712340, 8726042, 9026940, 10068510, 13089063, 17452084, 20137020, 21815105, 26178126, 43630210, 52356252, 65445315, 87260420, 130890630, 261781260]

約数ペア:

[(1, 261781260), (2, 130890630), (3, 87260420), (4, 65445315), (5, 52356252), (6, 43630210), (10, 26178126), (12, 21815105), (13, 20137020), (15, 17452084), (20, 13089063), (26, 10068510), (29, 9026940), (30, 8726042), (39, 6712340), (52, 5034255), (58, 4513470), (60, 4363021), (65, 4027404), (71, 3687060), (78, 3356170), (87, 3008980), (116, 2256735), (130, 2013702), (142, 1843530), (145, 1805388), (156, 1678085), (163, 1606020), (174, 1504490), (195, 1342468), (213, 1229020), (260, 1006851), (284, 921765), (290, 902694), (326, 803010), (348, 752245), (355, 737412), (377, 694380), (390, 671234), (426, 614510), (435, 601796), (489, 535340), (580, 451347), (652, 401505), (710, 368706), (754, 347190), (780, 335617), (815, 321204), (852, 307255), (870, 300898), (923, 283620), (978, 267670), (1065, 245804), (1131, 231460), (1420, 184353), (1508, 173595), (1630, 160602), (1740, 150449), (1846, 141810), (1885, 138876), (1956, 133835), (2059, 127140), (2119, 123540), (2130, 122902), (2262, 115730), (2445, 107068), (2769, 94540), (3260, 80301), (3692, 70905), (3770, 69438), (4118, 63570), (4238, 61770), (4260, 61451), (4524, 57865), (4615, 56724), (4727, 55380), (4890, 53534), (5538, 47270), (5655, 46292), (6177, 42380), (6357, 41180), (7540, 34719), (8236, 31785), (8476, 30885), (9230, 28362), (9454, 27690), (9780, 26767), (10295, 25428), (10595, 24708), (11076, 23635), (11310, 23146), (11573, 22620), (12354, 21190), (12714, 20590), (13845, 18908), (14181, 18460)]