71681490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 204768000

約数和(自身を除く): 133086510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 89, 90, 95, 114, 135, 157, 171, 178, 190, 267, 270, 285, 314, 342, 445, 471, 513, 534, 570, 785, 801, 855, 890, 942, 1026, 1335, 1413, 1570, 1602, 1691, 1710, 2355, 2403, 2565, 2670, 2826, 2983, 3382, 4005, 4239, 4710, 4806, 5073, 5130, 5966, 7065, 8010, 8455, 8478, 8949, 10146, 12015, 13973, 14130, 14915, 15219, 16910, 17898, 21195, 24030, 25365, 26847, 27946, 29830, 30438, 41919, 42390, 44745, 45657, 50730, 53694, 69865, 76095, 80541, 83838, 89490, 91314, 125757, 134235, 139730, 152190, 161082, 209595, 228285, 251514, 265487, 268470, 377271, 402705, 419190, 456570, 530974, 628785, 754542, 796461, 805410, 1257570, 1327435, 1592922, 1886355, 2389383, 2654870, 3772710, 3982305, 4778766, 7168149, 7964610, 11946915, 14336298, 23893830, 35840745, 71681490]

約数ペア:

[(1, 71681490), (2, 35840745), (3, 23893830), (5, 14336298), (6, 11946915), (9, 7964610), (10, 7168149), (15, 4778766), (18, 3982305), (19, 3772710), (27, 2654870), (30, 2389383), (38, 1886355), (45, 1592922), (54, 1327435), (57, 1257570), (89, 805410), (90, 796461), (95, 754542), (114, 628785), (135, 530974), (157, 456570), (171, 419190), (178, 402705), (190, 377271), (267, 268470), (270, 265487), (285, 251514), (314, 228285), (342, 209595), (445, 161082), (471, 152190), (513, 139730), (534, 134235), (570, 125757), (785, 91314), (801, 89490), (855, 83838), (890, 80541), (942, 76095), (1026, 69865), (1335, 53694), (1413, 50730), (1570, 45657), (1602, 44745), (1691, 42390), (1710, 41919), (2355, 30438), (2403, 29830), (2565, 27946), (2670, 26847), (2826, 25365), (2983, 24030), (3382, 21195), (4005, 17898), (4239, 16910), (4710, 15219), (4806, 14915), (5073, 14130), (5130, 13973), (5966, 12015), (7065, 10146), (8010, 8949), (8455, 8478)]