306578680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:497

約数の個数: 128

約数和(自身を含む): 783432000

約数和(自身を除く): 476853320

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 61, 68, 76, 85, 95, 122, 136, 152, 170, 190, 244, 305, 323, 340, 380, 389, 488, 610, 646, 680, 760, 778, 1037, 1159, 1220, 1292, 1556, 1615, 1945, 2074, 2318, 2440, 2584, 3112, 3230, 3890, 4148, 4636, 5185, 5795, 6460, 6613, 7391, 7780, 8296, 9272, 10370, 11590, 12920, 13226, 14782, 15560, 19703, 20740, 23180, 23729, 26452, 29564, 33065, 36955, 39406, 41480, 46360, 47458, 52904, 59128, 66130, 73910, 78812, 94916, 98515, 118645, 125647, 132260, 147820, 157624, 189832, 197030, 237290, 251294, 264520, 295640, 394060, 403393, 450851, 474580, 502588, 628235, 788120, 806786, 901702, 949160, 1005176, 1256470, 1613572, 1803404, 2016965, 2254255, 2512940, 3227144, 3606808, 4033930, 4508510, 5025880, 7664467, 8067860, 9017020, 15328934, 16135720, 18034040, 30657868, 38322335, 61315736, 76644670, 153289340, 306578680]

約数ペア:

[(1, 306578680), (2, 153289340), (4, 76644670), (5, 61315736), (8, 38322335), (10, 30657868), (17, 18034040), (19, 16135720), (20, 15328934), (34, 9017020), (38, 8067860), (40, 7664467), (61, 5025880), (68, 4508510), (76, 4033930), (85, 3606808), (95, 3227144), (122, 2512940), (136, 2254255), (152, 2016965), (170, 1803404), (190, 1613572), (244, 1256470), (305, 1005176), (323, 949160), (340, 901702), (380, 806786), (389, 788120), (488, 628235), (610, 502588), (646, 474580), (680, 450851), (760, 403393), (778, 394060), (1037, 295640), (1159, 264520), (1220, 251294), (1292, 237290), (1556, 197030), (1615, 189832), (1945, 157624), (2074, 147820), (2318, 132260), (2440, 125647), (2584, 118645), (3112, 98515), (3230, 94916), (3890, 78812), (4148, 73910), (4636, 66130), (5185, 59128), (5795, 52904), (6460, 47458), (6613, 46360), (7391, 41480), (7780, 39406), (8296, 36955), (9272, 33065), (10370, 29564), (11590, 26452), (12920, 23729), (13226, 23180), (14782, 20740), (15560, 19703)]