1000689920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25219}}^1$

素因数の和:25271

約数の個数: 72

約数和(自身を含む): 2474384640

約数和(自身を除く): 1473694720

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, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 25219, 39680, 50438, 100876, 126095, 201752, 252190, 403504, 504380, 781789, 807008, 1008760, 1563578, 1614016, 2017520, 3127156, 3228032, 3908945, 4035040, 6254312, 6456064, 7817890, 8070080, 12508624, 15635780, 16140160, 25017248, 31271560, 32280320, 50034496, 62543120, 100068992, 125086240, 200137984, 250172480, 500344960, 1000689920]

約数ペア:

[(1, 1000689920), (2, 500344960), (4, 250172480), (5, 200137984), (8, 125086240), (10, 100068992), (16, 62543120), (20, 50034496), (31, 32280320), (32, 31271560), (40, 25017248), (62, 16140160), (64, 15635780), (80, 12508624), (124, 8070080), (128, 7817890), (155, 6456064), (160, 6254312), (248, 4035040), (256, 3908945), (310, 3228032), (320, 3127156), (496, 2017520), (620, 1614016), (640, 1563578), (992, 1008760), (1240, 807008), (1280, 781789), (1984, 504380), (2480, 403504), (3968, 252190), (4960, 201752), (7936, 126095), (9920, 100876), (19840, 50438), (25219, 39680)]