28013220400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89671}}^1$

素因数の和:89771

約数の個数: 120

約数和(自身を含む): 74455020288

約数和(自身を除く): 46441799888

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 71, 80, 88, 100, 110, 142, 176, 200, 220, 275, 284, 355, 400, 440, 550, 568, 710, 781, 880, 1100, 1136, 1420, 1562, 1775, 2200, 2840, 3124, 3550, 3905, 4400, 5680, 6248, 7100, 7810, 12496, 14200, 15620, 19525, 28400, 31240, 39050, 62480, 78100, 89671, 156200, 179342, 312400, 358684, 448355, 717368, 896710, 986381, 1434736, 1793420, 1972762, 2241775, 3586840, 3945524, 4483550, 4931905, 6366641, 7173680, 7891048, 8967100, 9863810, 12733282, 15782096, 17934200, 19727620, 24659525, 25466564, 31833205, 35868400, 39455240, 49319050, 50933128, 63666410, 70033051, 78910480, 98638100, 101866256, 127332820, 140066102, 159166025, 197276200, 254665640, 280132204, 318332050, 350165255, 394552400, 509331280, 560264408, 636664100, 700330510, 1120528816, 1273328200, 1400661020, 1750826275, 2546656400, 2801322040, 3501652550, 5602644080, 7003305100, 14006610200, 28013220400]

約数ペア:

[(1, 28013220400), (2, 14006610200), (4, 7003305100), (5, 5602644080), (8, 3501652550), (10, 2801322040), (11, 2546656400), (16, 1750826275), (20, 1400661020), (22, 1273328200), (25, 1120528816), (40, 700330510), (44, 636664100), (50, 560264408), (55, 509331280), (71, 394552400), (80, 350165255), (88, 318332050), (100, 280132204), (110, 254665640), (142, 197276200), (176, 159166025), (200, 140066102), (220, 127332820), (275, 101866256), (284, 98638100), (355, 78910480), (400, 70033051), (440, 63666410), (550, 50933128), (568, 49319050), (710, 39455240), (781, 35868400), (880, 31833205), (1100, 25466564), (1136, 24659525), (1420, 19727620), (1562, 17934200), (1775, 15782096), (2200, 12733282), (2840, 9863810), (3124, 8967100), (3550, 7891048), (3905, 7173680), (4400, 6366641), (5680, 4931905), (6248, 4483550), (7100, 3945524), (7810, 3586840), (12496, 2241775), (14200, 1972762), (15620, 1793420), (19525, 1434736), (28400, 986381), (31240, 896710), (39050, 717368), (62480, 448355), (78100, 358684), (89671, 312400), (156200, 179342)]