1388173680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{642673}}^1$

素因数の和:642695

約数の個数: 80

約数和(自身を含む): 4781494560

約数和(自身を除く): 3393320880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 642673, 1285346, 1928019, 2570692, 3213365, 3856038, 5141384, 5784057, 6426730, 7712076, 9640095, 10282768, 11568114, 12853460, 15424152, 17352171, 19280190, 23136228, 25706920, 28920285, 30848304, 34704342, 38560380, 46272456, 51413840, 57840570, 69408684, 77120760, 86760855, 92544912, 115681140, 138817368, 154241520, 173521710, 231362280, 277634736, 347043420, 462724560, 694086840, 1388173680]

約数ペア:

[(1, 1388173680), (2, 694086840), (3, 462724560), (4, 347043420), (5, 277634736), (6, 231362280), (8, 173521710), (9, 154241520), (10, 138817368), (12, 115681140), (15, 92544912), (16, 86760855), (18, 77120760), (20, 69408684), (24, 57840570), (27, 51413840), (30, 46272456), (36, 38560380), (40, 34704342), (45, 30848304), (48, 28920285), (54, 25706920), (60, 23136228), (72, 19280190), (80, 17352171), (90, 15424152), (108, 12853460), (120, 11568114), (135, 10282768), (144, 9640095), (180, 7712076), (216, 6426730), (240, 5784057), (270, 5141384), (360, 3856038), (432, 3213365), (540, 2570692), (720, 1928019), (1080, 1285346), (2160, 642673)]