20176380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:328

約数の個数: 144

約数和(自身を含む): 71285760

約数和(自身を除く): 51109380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 67, 70, 84, 90, 105, 126, 134, 140, 180, 201, 210, 239, 252, 268, 315, 335, 402, 420, 469, 478, 603, 630, 670, 717, 804, 938, 956, 1005, 1195, 1206, 1260, 1340, 1407, 1434, 1673, 1876, 2010, 2151, 2345, 2390, 2412, 2814, 2868, 3015, 3346, 3585, 4020, 4221, 4302, 4690, 4780, 5019, 5628, 6030, 6692, 7035, 7170, 8365, 8442, 8604, 9380, 10038, 10755, 12060, 14070, 14340, 15057, 16013, 16730, 16884, 20076, 21105, 21510, 25095, 28140, 30114, 32026, 33460, 42210, 43020, 48039, 50190, 60228, 64052, 75285, 80065, 84420, 96078, 100380, 112091, 144117, 150570, 160130, 192156, 224182, 240195, 288234, 301140, 320260, 336273, 448364, 480390, 560455, 576468, 672546, 720585, 960780, 1008819, 1120910, 1345092, 1441170, 1681365, 2017638, 2241820, 2882340, 3362730, 4035276, 5044095, 6725460, 10088190, 20176380]

約数ペア:

[(1, 20176380), (2, 10088190), (3, 6725460), (4, 5044095), (5, 4035276), (6, 3362730), (7, 2882340), (9, 2241820), (10, 2017638), (12, 1681365), (14, 1441170), (15, 1345092), (18, 1120910), (20, 1008819), (21, 960780), (28, 720585), (30, 672546), (35, 576468), (36, 560455), (42, 480390), (45, 448364), (60, 336273), (63, 320260), (67, 301140), (70, 288234), (84, 240195), (90, 224182), (105, 192156), (126, 160130), (134, 150570), (140, 144117), (180, 112091), (201, 100380), (210, 96078), (239, 84420), (252, 80065), (268, 75285), (315, 64052), (335, 60228), (402, 50190), (420, 48039), (469, 43020), (478, 42210), (603, 33460), (630, 32026), (670, 30114), (717, 28140), (804, 25095), (938, 21510), (956, 21105), (1005, 20076), (1195, 16884), (1206, 16730), (1260, 16013), (1340, 15057), (1407, 14340), (1434, 14070), (1673, 12060), (1876, 10755), (2010, 10038), (2151, 9380), (2345, 8604), (2390, 8442), (2412, 8365), (2814, 7170), (2868, 7035), (3015, 6692), (3346, 6030), (3585, 5628), (4020, 5019), (4221, 4780), (4302, 4690)]