257945520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8081}}^1$

素因数の和:8123

約数の個数: 160

約数和(自身を含む): 962081280

約数和(自身を除く): 704135760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 8081, 10640, 15960, 16162, 24243, 31920, 32324, 40405, 48486, 56567, 64648, 80810, 96972, 113134, 121215, 129296, 153539, 161620, 169701, 193944, 226268, 242430, 282835, 307078, 323240, 339402, 387888, 452536, 460617, 484860, 565670, 614156, 646480, 678804, 767695, 848505, 905072, 921234, 969720, 1074773, 1131340, 1228312, 1357608, 1535390, 1697010, 1842468, 1939440, 2149546, 2262680, 2303085, 2456624, 2715216, 3070780, 3224319, 3394020, 3684936, 4299092, 4525360, 4606170, 5373865, 6141560, 6448638, 6788040, 7369872, 8598184, 9212340, 10747730, 12283120, 12897276, 13576080, 16121595, 17196368, 18424680, 21495460, 25794552, 32243190, 36849360, 42990920, 51589104, 64486380, 85981840, 128972760, 257945520]

約数ペア:

[(1, 257945520), (2, 128972760), (3, 85981840), (4, 64486380), (5, 51589104), (6, 42990920), (7, 36849360), (8, 32243190), (10, 25794552), (12, 21495460), (14, 18424680), (15, 17196368), (16, 16121595), (19, 13576080), (20, 12897276), (21, 12283120), (24, 10747730), (28, 9212340), (30, 8598184), (35, 7369872), (38, 6788040), (40, 6448638), (42, 6141560), (48, 5373865), (56, 4606170), (57, 4525360), (60, 4299092), (70, 3684936), (76, 3394020), (80, 3224319), (84, 3070780), (95, 2715216), (105, 2456624), (112, 2303085), (114, 2262680), (120, 2149546), (133, 1939440), (140, 1842468), (152, 1697010), (168, 1535390), (190, 1357608), (210, 1228312), (228, 1131340), (240, 1074773), (266, 969720), (280, 921234), (285, 905072), (304, 848505), (336, 767695), (380, 678804), (399, 646480), (420, 614156), (456, 565670), (532, 484860), (560, 460617), (570, 452536), (665, 387888), (760, 339402), (798, 323240), (840, 307078), (912, 282835), (1064, 242430), (1140, 226268), (1330, 193944), (1520, 169701), (1596, 161620), (1680, 153539), (1995, 129296), (2128, 121215), (2280, 113134), (2660, 96972), (3192, 80810), (3990, 64648), (4560, 56567), (5320, 48486), (6384, 40405), (7980, 32324), (8081, 31920), (10640, 24243), (15960, 16162)]