279791120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:349

約数の個数: 160

約数和(自身を含む): 781664256

約数和(自身を除く): 501873136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 71, 80, 112, 124, 140, 142, 155, 217, 227, 248, 280, 284, 310, 355, 434, 454, 496, 497, 560, 568, 620, 710, 868, 908, 994, 1085, 1135, 1136, 1240, 1420, 1589, 1736, 1816, 1988, 2170, 2201, 2270, 2480, 2485, 2840, 3178, 3472, 3632, 3976, 4340, 4402, 4540, 4970, 5680, 6356, 7037, 7945, 7952, 8680, 8804, 9080, 9940, 11005, 12712, 14074, 15407, 15890, 16117, 17360, 17608, 18160, 19880, 22010, 25424, 28148, 30814, 31780, 32234, 35185, 35216, 39760, 44020, 49259, 56296, 61628, 63560, 64468, 70370, 77035, 80585, 88040, 98518, 112592, 112819, 123256, 127120, 128936, 140740, 154070, 161170, 176080, 197036, 225638, 246295, 246512, 257872, 281480, 308140, 322340, 394072, 451276, 492590, 499627, 562960, 564095, 616280, 644680, 788144, 902552, 985180, 999254, 1128190, 1232560, 1289360, 1805104, 1970360, 1998508, 2256380, 2498135, 3497389, 3940720, 3997016, 4512760, 4996270, 6994778, 7994032, 9025520, 9992540, 13989556, 17486945, 19985080, 27979112, 34973890, 39970160, 55958224, 69947780, 139895560, 279791120]

約数ペア:

[(1, 279791120), (2, 139895560), (4, 69947780), (5, 55958224), (7, 39970160), (8, 34973890), (10, 27979112), (14, 19985080), (16, 17486945), (20, 13989556), (28, 9992540), (31, 9025520), (35, 7994032), (40, 6994778), (56, 4996270), (62, 4512760), (70, 3997016), (71, 3940720), (80, 3497389), (112, 2498135), (124, 2256380), (140, 1998508), (142, 1970360), (155, 1805104), (217, 1289360), (227, 1232560), (248, 1128190), (280, 999254), (284, 985180), (310, 902552), (355, 788144), (434, 644680), (454, 616280), (496, 564095), (497, 562960), (560, 499627), (568, 492590), (620, 451276), (710, 394072), (868, 322340), (908, 308140), (994, 281480), (1085, 257872), (1135, 246512), (1136, 246295), (1240, 225638), (1420, 197036), (1589, 176080), (1736, 161170), (1816, 154070), (1988, 140740), (2170, 128936), (2201, 127120), (2270, 123256), (2480, 112819), (2485, 112592), (2840, 98518), (3178, 88040), (3472, 80585), (3632, 77035), (3976, 70370), (4340, 64468), (4402, 63560), (4540, 61628), (4970, 56296), (5680, 49259), (6356, 44020), (7037, 39760), (7945, 35216), (7952, 35185), (8680, 32234), (8804, 31780), (9080, 30814), (9940, 28148), (11005, 25424), (12712, 22010), (14074, 19880), (15407, 18160), (15890, 17608), (16117, 17360)]