80917280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 96

約数和(自身を含む): 205752960

約数和(自身を除く): 124835680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 71, 80, 85, 136, 142, 160, 170, 272, 284, 340, 355, 419, 544, 568, 680, 710, 838, 1136, 1207, 1360, 1420, 1676, 2095, 2272, 2414, 2720, 2840, 3352, 4190, 4828, 5680, 6035, 6704, 7123, 8380, 9656, 11360, 12070, 13408, 14246, 16760, 19312, 24140, 28492, 29749, 33520, 35615, 38624, 48280, 56984, 59498, 67040, 71230, 96560, 113968, 118996, 142460, 148745, 193120, 227936, 237992, 284920, 297490, 475984, 505733, 569840, 594980, 951968, 1011466, 1139680, 1189960, 2022932, 2379920, 2528665, 4045864, 4759840, 5057330, 8091728, 10114660, 16183456, 20229320, 40458640, 80917280]

約数ペア:

[(1, 80917280), (2, 40458640), (4, 20229320), (5, 16183456), (8, 10114660), (10, 8091728), (16, 5057330), (17, 4759840), (20, 4045864), (32, 2528665), (34, 2379920), (40, 2022932), (68, 1189960), (71, 1139680), (80, 1011466), (85, 951968), (136, 594980), (142, 569840), (160, 505733), (170, 475984), (272, 297490), (284, 284920), (340, 237992), (355, 227936), (419, 193120), (544, 148745), (568, 142460), (680, 118996), (710, 113968), (838, 96560), (1136, 71230), (1207, 67040), (1360, 59498), (1420, 56984), (1676, 48280), (2095, 38624), (2272, 35615), (2414, 33520), (2720, 29749), (2840, 28492), (3352, 24140), (4190, 19312), (4828, 16760), (5680, 14246), (6035, 13408), (6704, 12070), (7123, 11360), (8380, 9656)]