80178400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 209236608

約数和(自身を除く): 129058208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 53, 61, 62, 80, 100, 106, 122, 124, 155, 160, 200, 212, 244, 248, 265, 305, 310, 400, 424, 488, 496, 530, 610, 620, 775, 800, 848, 976, 992, 1060, 1220, 1240, 1325, 1525, 1550, 1643, 1696, 1891, 1952, 2120, 2440, 2480, 2650, 3050, 3100, 3233, 3286, 3782, 4240, 4880, 4960, 5300, 6100, 6200, 6466, 6572, 7564, 8215, 8480, 9455, 9760, 10600, 12200, 12400, 12932, 13144, 15128, 16165, 16430, 18910, 21200, 24400, 24800, 25864, 26288, 30256, 32330, 32860, 37820, 41075, 42400, 47275, 48800, 51728, 52576, 60512, 64660, 65720, 75640, 80825, 82150, 94550, 100223, 103456, 129320, 131440, 151280, 161650, 164300, 189100, 200446, 258640, 262880, 302560, 323300, 328600, 378200, 400892, 501115, 517280, 646600, 657200, 756400, 801784, 1002230, 1293200, 1314400, 1512800, 1603568, 2004460, 2505575, 2586400, 3207136, 4008920, 5011150, 8017840, 10022300, 16035680, 20044600, 40089200, 80178400]

約数ペア:

[(1, 80178400), (2, 40089200), (4, 20044600), (5, 16035680), (8, 10022300), (10, 8017840), (16, 5011150), (20, 4008920), (25, 3207136), (31, 2586400), (32, 2505575), (40, 2004460), (50, 1603568), (53, 1512800), (61, 1314400), (62, 1293200), (80, 1002230), (100, 801784), (106, 756400), (122, 657200), (124, 646600), (155, 517280), (160, 501115), (200, 400892), (212, 378200), (244, 328600), (248, 323300), (265, 302560), (305, 262880), (310, 258640), (400, 200446), (424, 189100), (488, 164300), (496, 161650), (530, 151280), (610, 131440), (620, 129320), (775, 103456), (800, 100223), (848, 94550), (976, 82150), (992, 80825), (1060, 75640), (1220, 65720), (1240, 64660), (1325, 60512), (1525, 52576), (1550, 51728), (1643, 48800), (1696, 47275), (1891, 42400), (1952, 41075), (2120, 37820), (2440, 32860), (2480, 32330), (2650, 30256), (3050, 26288), (3100, 25864), (3233, 24800), (3286, 24400), (3782, 21200), (4240, 18910), (4880, 16430), (4960, 16165), (5300, 15128), (6100, 13144), (6200, 12932), (6466, 12400), (6572, 12200), (7564, 10600), (8215, 9760), (8480, 9455)]