71456280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:609

約数の個数: 128

約数和(自身を含む): 246689280

約数和(自身を除く): 175233000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 257, 280, 331, 420, 514, 662, 771, 840, 993, 1028, 1285, 1324, 1542, 1655, 1799, 1986, 2056, 2317, 2570, 2648, 3084, 3310, 3598, 3855, 3972, 4634, 4965, 5140, 5397, 6168, 6620, 6951, 7196, 7710, 7944, 8995, 9268, 9930, 10280, 10794, 11585, 13240, 13902, 14392, 15420, 17990, 18536, 19860, 21588, 23170, 26985, 27804, 30840, 34755, 35980, 39720, 43176, 46340, 53970, 55608, 69510, 71960, 85067, 92680, 107940, 139020, 170134, 215880, 255201, 278040, 340268, 425335, 510402, 595469, 680536, 850670, 1020804, 1190938, 1276005, 1701340, 1786407, 2041608, 2381876, 2552010, 2977345, 3402680, 3572814, 4763752, 5104020, 5954690, 7145628, 8932035, 10208040, 11909380, 14291256, 17864070, 23818760, 35728140, 71456280]

約数ペア:

[(1, 71456280), (2, 35728140), (3, 23818760), (4, 17864070), (5, 14291256), (6, 11909380), (7, 10208040), (8, 8932035), (10, 7145628), (12, 5954690), (14, 5104020), (15, 4763752), (20, 3572814), (21, 3402680), (24, 2977345), (28, 2552010), (30, 2381876), (35, 2041608), (40, 1786407), (42, 1701340), (56, 1276005), (60, 1190938), (70, 1020804), (84, 850670), (105, 680536), (120, 595469), (140, 510402), (168, 425335), (210, 340268), (257, 278040), (280, 255201), (331, 215880), (420, 170134), (514, 139020), (662, 107940), (771, 92680), (840, 85067), (993, 71960), (1028, 69510), (1285, 55608), (1324, 53970), (1542, 46340), (1655, 43176), (1799, 39720), (1986, 35980), (2056, 34755), (2317, 30840), (2570, 27804), (2648, 26985), (3084, 23170), (3310, 21588), (3598, 19860), (3855, 18536), (3972, 17990), (4634, 15420), (4965, 14392), (5140, 13902), (5397, 13240), (6168, 11585), (6620, 10794), (6951, 10280), (7196, 9930), (7710, 9268), (7944, 8995)]