51638040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 128

約数和(自身を含む): 173880000

約数和(自身を除く): 122241960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 137, 180, 216, 270, 274, 349, 360, 411, 540, 548, 685, 698, 822, 1047, 1080, 1096, 1233, 1370, 1396, 1644, 1745, 2055, 2094, 2466, 2740, 2792, 3141, 3288, 3490, 3699, 4110, 4188, 4932, 5235, 5480, 6165, 6282, 6980, 7398, 8220, 8376, 9423, 9864, 10470, 12330, 12564, 13960, 14796, 15705, 16440, 18495, 18846, 20940, 24660, 25128, 29592, 31410, 36990, 37692, 41880, 47115, 47813, 49320, 62820, 73980, 75384, 94230, 95626, 125640, 143439, 147960, 188460, 191252, 239065, 286878, 376920, 382504, 430317, 478130, 573756, 717195, 860634, 956260, 1147512, 1290951, 1434390, 1721268, 1912520, 2151585, 2581902, 2868780, 3442536, 4303170, 5163804, 5737560, 6454755, 8606340, 10327608, 12909510, 17212680, 25819020, 51638040]

約数ペア:

[(1, 51638040), (2, 25819020), (3, 17212680), (4, 12909510), (5, 10327608), (6, 8606340), (8, 6454755), (9, 5737560), (10, 5163804), (12, 4303170), (15, 3442536), (18, 2868780), (20, 2581902), (24, 2151585), (27, 1912520), (30, 1721268), (36, 1434390), (40, 1290951), (45, 1147512), (54, 956260), (60, 860634), (72, 717195), (90, 573756), (108, 478130), (120, 430317), (135, 382504), (137, 376920), (180, 286878), (216, 239065), (270, 191252), (274, 188460), (349, 147960), (360, 143439), (411, 125640), (540, 95626), (548, 94230), (685, 75384), (698, 73980), (822, 62820), (1047, 49320), (1080, 47813), (1096, 47115), (1233, 41880), (1370, 37692), (1396, 36990), (1644, 31410), (1745, 29592), (2055, 25128), (2094, 24660), (2466, 20940), (2740, 18846), (2792, 18495), (3141, 16440), (3288, 15705), (3490, 14796), (3699, 13960), (4110, 12564), (4188, 12330), (4932, 10470), (5235, 9864), (5480, 9423), (6165, 8376), (6282, 8220), (6980, 7398)]