20121594465

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{3761}}^1$

素因数の和:4063

約数の個数: 96

約数和(自身を含む): 38906904960

約数和(自身を除く): 18785310495

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 251, 435, 609, 735, 753, 1015, 1255, 1421, 1757, 3045, 3761, 3765, 4263, 5271, 7105, 7279, 8785, 11283, 12299, 18805, 21315, 21837, 26327, 26355, 36395, 36897, 50953, 56415, 61495, 78981, 109069, 109185, 131635, 152859, 184289, 184485, 254765, 327207, 356671, 394905, 545345, 552867, 763483, 764295, 921445, 944011, 1070013, 1636035, 1783355, 2290449, 2764335, 2832033, 3817415, 4720055, 5344381, 5350065, 6608077, 11452245, 14160165, 16033143, 19824231, 26721905, 27376319, 33040385, 46256539, 80165715, 82128957, 99121155, 136881595, 138769617, 191634233, 231282695, 410644785, 574902699, 693848085, 958171165, 1341439631, 2874513495, 4024318893, 6707198155, 20121594465]

約数ペア:

[(1, 20121594465), (3, 6707198155), (5, 4024318893), (7, 2874513495), (15, 1341439631), (21, 958171165), (29, 693848085), (35, 574902699), (49, 410644785), (87, 231282695), (105, 191634233), (145, 138769617), (147, 136881595), (203, 99121155), (245, 82128957), (251, 80165715), (435, 46256539), (609, 33040385), (735, 27376319), (753, 26721905), (1015, 19824231), (1255, 16033143), (1421, 14160165), (1757, 11452245), (3045, 6608077), (3761, 5350065), (3765, 5344381), (4263, 4720055), (5271, 3817415), (7105, 2832033), (7279, 2764335), (8785, 2290449), (11283, 1783355), (12299, 1636035), (18805, 1070013), (21315, 944011), (21837, 921445), (26327, 764295), (26355, 763483), (36395, 552867), (36897, 545345), (50953, 394905), (56415, 356671), (61495, 327207), (78981, 254765), (109069, 184485), (109185, 184289), (131635, 152859)]