68443700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 179363520

約数和(自身を除く): 110919820

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 50, 52, 65, 68, 76, 85, 95, 100, 130, 163, 170, 190, 221, 247, 260, 323, 325, 326, 340, 380, 425, 442, 475, 494, 646, 650, 652, 815, 850, 884, 950, 988, 1105, 1235, 1292, 1300, 1615, 1630, 1700, 1900, 2119, 2210, 2470, 2771, 3097, 3230, 3260, 4075, 4199, 4238, 4420, 4940, 5525, 5542, 6175, 6194, 6460, 8075, 8150, 8398, 8476, 10595, 11050, 11084, 12350, 12388, 13855, 15485, 16150, 16300, 16796, 20995, 21190, 22100, 24700, 27710, 30970, 32300, 36023, 40261, 41990, 42380, 52649, 52975, 55420, 61940, 69275, 72046, 77425, 80522, 83980, 104975, 105298, 105950, 138550, 144092, 154850, 161044, 180115, 201305, 209950, 210596, 211900, 263245, 277100, 309700, 360230, 402610, 419900, 526490, 684437, 720460, 805220, 900575, 1006525, 1052980, 1316225, 1368874, 1801150, 2013050, 2632450, 2737748, 3422185, 3602300, 4026100, 5264900, 6844370, 13688740, 17110925, 34221850, 68443700]

約数ペア:

[(1, 68443700), (2, 34221850), (4, 17110925), (5, 13688740), (10, 6844370), (13, 5264900), (17, 4026100), (19, 3602300), (20, 3422185), (25, 2737748), (26, 2632450), (34, 2013050), (38, 1801150), (50, 1368874), (52, 1316225), (65, 1052980), (68, 1006525), (76, 900575), (85, 805220), (95, 720460), (100, 684437), (130, 526490), (163, 419900), (170, 402610), (190, 360230), (221, 309700), (247, 277100), (260, 263245), (323, 211900), (325, 210596), (326, 209950), (340, 201305), (380, 180115), (425, 161044), (442, 154850), (475, 144092), (494, 138550), (646, 105950), (650, 105298), (652, 104975), (815, 83980), (850, 80522), (884, 77425), (950, 72046), (988, 69275), (1105, 61940), (1235, 55420), (1292, 52975), (1300, 52649), (1615, 42380), (1630, 41990), (1700, 40261), (1900, 36023), (2119, 32300), (2210, 30970), (2470, 27710), (2771, 24700), (3097, 22100), (3230, 21190), (3260, 20995), (4075, 16796), (4199, 16300), (4238, 16150), (4420, 15485), (4940, 13855), (5525, 12388), (5542, 12350), (6175, 11084), (6194, 11050), (6460, 10595), (8075, 8476), (8150, 8398)]