80669440

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 211921920

約数和(自身を除く): 131252480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 107, 124, 128, 152, 155, 160, 190, 214, 248, 256, 304, 310, 320, 380, 428, 496, 535, 589, 608, 620, 640, 760, 856, 992, 1070, 1178, 1216, 1240, 1280, 1520, 1712, 1984, 2033, 2140, 2356, 2432, 2480, 2945, 3040, 3317, 3424, 3968, 4066, 4280, 4712, 4864, 4960, 5890, 6080, 6634, 6848, 7936, 8132, 8560, 9424, 9920, 10165, 11780, 12160, 13268, 13696, 16264, 16585, 17120, 18848, 19840, 20330, 23560, 24320, 26536, 27392, 32528, 33170, 34240, 37696, 39680, 40660, 47120, 53072, 63023, 65056, 66340, 68480, 75392, 81320, 94240, 106144, 126046, 130112, 132680, 136960, 150784, 162640, 188480, 212288, 252092, 260224, 265360, 315115, 325280, 376960, 424576, 504184, 520448, 530720, 630230, 650560, 753920, 849152, 1008368, 1061440, 1260460, 1301120, 2016736, 2122880, 2520920, 2602240, 4033472, 4245760, 5041840, 8066944, 10083680, 16133888, 20167360, 40334720, 80669440]

約数ペア:

[(1, 80669440), (2, 40334720), (4, 20167360), (5, 16133888), (8, 10083680), (10, 8066944), (16, 5041840), (19, 4245760), (20, 4033472), (31, 2602240), (32, 2520920), (38, 2122880), (40, 2016736), (62, 1301120), (64, 1260460), (76, 1061440), (80, 1008368), (95, 849152), (107, 753920), (124, 650560), (128, 630230), (152, 530720), (155, 520448), (160, 504184), (190, 424576), (214, 376960), (248, 325280), (256, 315115), (304, 265360), (310, 260224), (320, 252092), (380, 212288), (428, 188480), (496, 162640), (535, 150784), (589, 136960), (608, 132680), (620, 130112), (640, 126046), (760, 106144), (856, 94240), (992, 81320), (1070, 75392), (1178, 68480), (1216, 66340), (1240, 65056), (1280, 63023), (1520, 53072), (1712, 47120), (1984, 40660), (2033, 39680), (2140, 37696), (2356, 34240), (2432, 33170), (2480, 32528), (2945, 27392), (3040, 26536), (3317, 24320), (3424, 23560), (3968, 20330), (4066, 19840), (4280, 18848), (4712, 17120), (4864, 16585), (4960, 16264), (5890, 13696), (6080, 13268), (6634, 12160), (6848, 11780), (7936, 10165), (8132, 9920), (8560, 9424)]