20972340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 67721472

約数和(自身を除く): 46749132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 47, 60, 67, 74, 90, 94, 111, 134, 141, 148, 180, 185, 188, 201, 222, 235, 268, 282, 333, 335, 370, 402, 423, 444, 470, 555, 564, 603, 666, 670, 705, 740, 804, 846, 940, 1005, 1110, 1206, 1332, 1340, 1410, 1665, 1692, 1739, 2010, 2115, 2220, 2412, 2479, 2820, 3015, 3149, 3330, 3478, 4020, 4230, 4958, 5217, 6030, 6298, 6660, 6956, 7437, 8460, 8695, 9447, 9916, 10434, 12060, 12395, 12596, 14874, 15651, 15745, 17390, 18894, 20868, 22311, 24790, 26085, 28341, 29748, 31302, 31490, 34780, 37185, 37788, 44622, 47235, 49580, 52170, 56682, 62604, 62980, 74370, 78255, 89244, 94470, 104340, 111555, 113364, 116513, 141705, 148740, 156510, 188940, 223110, 233026, 283410, 313020, 349539, 446220, 466052, 566820, 582565, 699078, 1048617, 1165130, 1398156, 1747695, 2097234, 2330260, 3495390, 4194468, 5243085, 6990780, 10486170, 20972340]

約数ペア:

[(1, 20972340), (2, 10486170), (3, 6990780), (4, 5243085), (5, 4194468), (6, 3495390), (9, 2330260), (10, 2097234), (12, 1747695), (15, 1398156), (18, 1165130), (20, 1048617), (30, 699078), (36, 582565), (37, 566820), (45, 466052), (47, 446220), (60, 349539), (67, 313020), (74, 283410), (90, 233026), (94, 223110), (111, 188940), (134, 156510), (141, 148740), (148, 141705), (180, 116513), (185, 113364), (188, 111555), (201, 104340), (222, 94470), (235, 89244), (268, 78255), (282, 74370), (333, 62980), (335, 62604), (370, 56682), (402, 52170), (423, 49580), (444, 47235), (470, 44622), (555, 37788), (564, 37185), (603, 34780), (666, 31490), (670, 31302), (705, 29748), (740, 28341), (804, 26085), (846, 24790), (940, 22311), (1005, 20868), (1110, 18894), (1206, 17390), (1332, 15745), (1340, 15651), (1410, 14874), (1665, 12596), (1692, 12395), (1739, 12060), (2010, 10434), (2115, 9916), (2220, 9447), (2412, 8695), (2479, 8460), (2820, 7437), (3015, 6956), (3149, 6660), (3330, 6298), (3478, 6030), (4020, 5217), (4230, 4958)]