20199266985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:487

約数の個数: 128

約数和(自身を含む): 35884062720

約数和(自身を除く): 15684795735

約数列:

[1, 3, 5, 15, 19, 43, 53, 57, 95, 129, 137, 159, 215, 227, 265, 285, 411, 645, 681, 685, 795, 817, 1007, 1135, 2055, 2279, 2451, 2603, 3021, 3405, 4085, 4313, 5035, 5891, 6837, 7261, 7809, 9761, 11395, 12031, 12255, 12939, 13015, 15105, 17673, 21565, 21783, 29283, 29455, 31099, 34185, 36093, 36305, 39045, 43301, 48805, 60155, 64695, 88365, 93297, 108915, 111929, 129903, 137959, 146415, 155495, 180465, 185459, 216505, 228589, 312223, 335787, 413877, 466485, 517333, 556377, 559645, 590881, 649515, 685767, 689795, 927295, 936669, 1142945, 1337257, 1551999, 1561115, 1648247, 1678935, 1772643, 2069385, 2586665, 2781885, 2954405, 3428835, 4011771, 4683345, 4944741, 5932237, 6686285, 7759995, 8241235, 8863215, 9829327, 17796711, 20058855, 24723705, 25407883, 29487981, 29661185, 31316693, 49146635, 70874621, 76223649, 88983555, 93950079, 127039415, 147439905, 156583465, 212623863, 354373105, 381118245, 469750395, 1063119315, 1346617799, 4039853397, 6733088995, 20199266985]

約数ペア:

[(1, 20199266985), (3, 6733088995), (5, 4039853397), (15, 1346617799), (19, 1063119315), (43, 469750395), (53, 381118245), (57, 354373105), (95, 212623863), (129, 156583465), (137, 147439905), (159, 127039415), (215, 93950079), (227, 88983555), (265, 76223649), (285, 70874621), (411, 49146635), (645, 31316693), (681, 29661185), (685, 29487981), (795, 25407883), (817, 24723705), (1007, 20058855), (1135, 17796711), (2055, 9829327), (2279, 8863215), (2451, 8241235), (2603, 7759995), (3021, 6686285), (3405, 5932237), (4085, 4944741), (4313, 4683345), (5035, 4011771), (5891, 3428835), (6837, 2954405), (7261, 2781885), (7809, 2586665), (9761, 2069385), (11395, 1772643), (12031, 1678935), (12255, 1648247), (12939, 1561115), (13015, 1551999), (15105, 1337257), (17673, 1142945), (21565, 936669), (21783, 927295), (29283, 689795), (29455, 685767), (31099, 649515), (34185, 590881), (36093, 559645), (36305, 556377), (39045, 517333), (43301, 466485), (48805, 413877), (60155, 335787), (64695, 312223), (88365, 228589), (93297, 216505), (108915, 185459), (111929, 180465), (129903, 155495), (137959, 146415)]