1620851120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1279}}^1$

素因数の和:1403

約数の個数: 160

約数和(自身を含む): 4510187520

約数和(自身を除く): 2889336400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 73, 80, 112, 124, 140, 146, 155, 217, 248, 280, 292, 310, 365, 434, 496, 511, 560, 584, 620, 730, 868, 1022, 1085, 1168, 1240, 1279, 1460, 1736, 2044, 2170, 2263, 2480, 2555, 2558, 2920, 3472, 4088, 4340, 4526, 5110, 5116, 5840, 6395, 8176, 8680, 8953, 9052, 10220, 10232, 11315, 12790, 15841, 17360, 17906, 18104, 20440, 20464, 22630, 25580, 31682, 35812, 36208, 39649, 40880, 44765, 45260, 51160, 63364, 71624, 79205, 79298, 89530, 90520, 93367, 102320, 126728, 143248, 158410, 158596, 179060, 181040, 186734, 198245, 253456, 277543, 316820, 317192, 358120, 373468, 396490, 466835, 555086, 633640, 634384, 653569, 716240, 746936, 792980, 933670, 1110172, 1267280, 1307138, 1387715, 1493872, 1585960, 1867340, 2220344, 2614276, 2775430, 2894377, 3171920, 3267845, 3734680, 4440688, 5228552, 5550860, 5788754, 6535690, 7469360, 10457104, 11101720, 11577508, 13071380, 14471885, 20260639, 22203440, 23155016, 26142760, 28943770, 40521278, 46310032, 52285520, 57887540, 81042556, 101303195, 115775080, 162085112, 202606390, 231550160, 324170224, 405212780, 810425560, 1620851120]

約数ペア:

[(1, 1620851120), (2, 810425560), (4, 405212780), (5, 324170224), (7, 231550160), (8, 202606390), (10, 162085112), (14, 115775080), (16, 101303195), (20, 81042556), (28, 57887540), (31, 52285520), (35, 46310032), (40, 40521278), (56, 28943770), (62, 26142760), (70, 23155016), (73, 22203440), (80, 20260639), (112, 14471885), (124, 13071380), (140, 11577508), (146, 11101720), (155, 10457104), (217, 7469360), (248, 6535690), (280, 5788754), (292, 5550860), (310, 5228552), (365, 4440688), (434, 3734680), (496, 3267845), (511, 3171920), (560, 2894377), (584, 2775430), (620, 2614276), (730, 2220344), (868, 1867340), (1022, 1585960), (1085, 1493872), (1168, 1387715), (1240, 1307138), (1279, 1267280), (1460, 1110172), (1736, 933670), (2044, 792980), (2170, 746936), (2263, 716240), (2480, 653569), (2555, 634384), (2558, 633640), (2920, 555086), (3472, 466835), (4088, 396490), (4340, 373468), (4526, 358120), (5110, 317192), (5116, 316820), (5840, 277543), (6395, 253456), (8176, 198245), (8680, 186734), (8953, 181040), (9052, 179060), (10220, 158596), (10232, 158410), (11315, 143248), (12790, 126728), (15841, 102320), (17360, 93367), (17906, 90520), (18104, 89530), (20440, 79298), (20464, 79205), (22630, 71624), (25580, 63364), (31682, 51160), (35812, 45260), (36208, 44765), (39649, 40880)]