31371760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 120

約数和(自身を含む): 87021216

約数和(自身を除く): 55649456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 151, 196, 212, 245, 265, 280, 302, 371, 392, 424, 490, 530, 560, 604, 742, 755, 784, 848, 980, 1057, 1060, 1208, 1484, 1510, 1855, 1960, 2114, 2120, 2416, 2597, 2968, 3020, 3710, 3920, 4228, 4240, 5194, 5285, 5936, 6040, 7399, 7420, 8003, 8456, 10388, 10570, 12080, 12985, 14798, 14840, 16006, 16912, 20776, 21140, 25970, 29596, 29680, 32012, 36995, 40015, 41552, 42280, 51940, 56021, 59192, 64024, 73990, 80030, 84560, 103880, 112042, 118384, 128048, 147980, 160060, 207760, 224084, 280105, 295960, 320120, 392147, 448168, 560210, 591920, 640240, 784294, 896336, 1120420, 1568588, 1960735, 2240840, 3137176, 3921470, 4481680, 6274352, 7842940, 15685880, 31371760]

約数ペア:

[(1, 31371760), (2, 15685880), (4, 7842940), (5, 6274352), (7, 4481680), (8, 3921470), (10, 3137176), (14, 2240840), (16, 1960735), (20, 1568588), (28, 1120420), (35, 896336), (40, 784294), (49, 640240), (53, 591920), (56, 560210), (70, 448168), (80, 392147), (98, 320120), (106, 295960), (112, 280105), (140, 224084), (151, 207760), (196, 160060), (212, 147980), (245, 128048), (265, 118384), (280, 112042), (302, 103880), (371, 84560), (392, 80030), (424, 73990), (490, 64024), (530, 59192), (560, 56021), (604, 51940), (742, 42280), (755, 41552), (784, 40015), (848, 36995), (980, 32012), (1057, 29680), (1060, 29596), (1208, 25970), (1484, 21140), (1510, 20776), (1855, 16912), (1960, 16006), (2114, 14840), (2120, 14798), (2416, 12985), (2597, 12080), (2968, 10570), (3020, 10388), (3710, 8456), (3920, 8003), (4228, 7420), (4240, 7399), (5194, 6040), (5285, 5936)]