261639120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:533

約数の個数: 160

約数和(自身を含む): 861194880

約数和(自身を除く): 599555760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 181, 190, 228, 240, 285, 304, 317, 362, 380, 456, 543, 570, 634, 724, 760, 905, 912, 951, 1086, 1140, 1268, 1448, 1520, 1585, 1810, 1902, 2172, 2280, 2536, 2715, 2896, 3170, 3439, 3620, 3804, 4344, 4560, 4755, 5072, 5430, 6023, 6340, 6878, 7240, 7608, 8688, 9510, 10317, 10860, 12046, 12680, 13756, 14480, 15216, 17195, 18069, 19020, 20634, 21720, 24092, 25360, 27512, 30115, 34390, 36138, 38040, 41268, 43440, 48184, 51585, 55024, 57377, 60230, 68780, 72276, 76080, 82536, 90345, 96368, 103170, 114754, 120460, 137560, 144552, 165072, 172131, 180690, 206340, 229508, 240920, 275120, 286885, 289104, 344262, 361380, 412680, 459016, 481840, 573770, 688524, 722760, 825360, 860655, 918032, 1090163, 1147540, 1377048, 1445520, 1721310, 2180326, 2295080, 2754096, 3270489, 3442620, 4360652, 4590160, 5450815, 6540978, 6885240, 8721304, 10901630, 13081956, 13770480, 16352445, 17442608, 21803260, 26163912, 32704890, 43606520, 52327824, 65409780, 87213040, 130819560, 261639120]

約数ペア:

[(1, 261639120), (2, 130819560), (3, 87213040), (4, 65409780), (5, 52327824), (6, 43606520), (8, 32704890), (10, 26163912), (12, 21803260), (15, 17442608), (16, 16352445), (19, 13770480), (20, 13081956), (24, 10901630), (30, 8721304), (38, 6885240), (40, 6540978), (48, 5450815), (57, 4590160), (60, 4360652), (76, 3442620), (80, 3270489), (95, 2754096), (114, 2295080), (120, 2180326), (152, 1721310), (181, 1445520), (190, 1377048), (228, 1147540), (240, 1090163), (285, 918032), (304, 860655), (317, 825360), (362, 722760), (380, 688524), (456, 573770), (543, 481840), (570, 459016), (634, 412680), (724, 361380), (760, 344262), (905, 289104), (912, 286885), (951, 275120), (1086, 240920), (1140, 229508), (1268, 206340), (1448, 180690), (1520, 172131), (1585, 165072), (1810, 144552), (1902, 137560), (2172, 120460), (2280, 114754), (2536, 103170), (2715, 96368), (2896, 90345), (3170, 82536), (3439, 76080), (3620, 72276), (3804, 68780), (4344, 60230), (4560, 57377), (4755, 55024), (5072, 51585), (5430, 48184), (6023, 43440), (6340, 41268), (6878, 38040), (7240, 36138), (7608, 34390), (8688, 30115), (9510, 27512), (10317, 25360), (10860, 24092), (12046, 21720), (12680, 20634), (13756, 19020), (14480, 18069), (15216, 17195)]