155069440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1033

約数の個数: 88

約数和(自身を含む): 384377472

約数和(自身を除く): 229308032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 977, 992, 1024, 1240, 1280, 1954, 1984, 2480, 2560, 3908, 3968, 4885, 4960, 5120, 7816, 7936, 9770, 9920, 15632, 15872, 19540, 19840, 30287, 31264, 31744, 39080, 39680, 60574, 62528, 78160, 79360, 121148, 125056, 151435, 156320, 158720, 242296, 250112, 302870, 312640, 484592, 500224, 605740, 625280, 969184, 1000448, 1211480, 1250560, 1938368, 2422960, 2501120, 3876736, 4845920, 5002240, 7753472, 9691840, 15506944, 19383680, 31013888, 38767360, 77534720, 155069440]

約数ペア:

[(1, 155069440), (2, 77534720), (4, 38767360), (5, 31013888), (8, 19383680), (10, 15506944), (16, 9691840), (20, 7753472), (31, 5002240), (32, 4845920), (40, 3876736), (62, 2501120), (64, 2422960), (80, 1938368), (124, 1250560), (128, 1211480), (155, 1000448), (160, 969184), (248, 625280), (256, 605740), (310, 500224), (320, 484592), (496, 312640), (512, 302870), (620, 250112), (640, 242296), (977, 158720), (992, 156320), (1024, 151435), (1240, 125056), (1280, 121148), (1954, 79360), (1984, 78160), (2480, 62528), (2560, 60574), (3908, 39680), (3968, 39080), (4885, 31744), (4960, 31264), (5120, 30287), (7816, 19840), (7936, 19540), (9770, 15872), (9920, 15632)]