20172959830

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{6277}}^1$

素因数の和:6553

約数の個数: 64

約数和(自身を含む): 38566005120

約数和(自身を除く): 18393045290

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 157, 178, 230, 314, 445, 785, 890, 1570, 2047, 3611, 4094, 6277, 7222, 10235, 12554, 13973, 18055, 20470, 27946, 31385, 36110, 62770, 69865, 139730, 144371, 288742, 321379, 558653, 642758, 721855, 985489, 1117306, 1443710, 1606895, 1970978, 2793265, 3213790, 4927445, 5586530, 9854890, 12849019, 22666247, 25698038, 45332494, 64245095, 87708521, 113331235, 128490190, 175417042, 226662470, 438542605, 877085210, 2017295983, 4034591966, 10086479915, 20172959830]

約数ペア:

[(1, 20172959830), (2, 10086479915), (5, 4034591966), (10, 2017295983), (23, 877085210), (46, 438542605), (89, 226662470), (115, 175417042), (157, 128490190), (178, 113331235), (230, 87708521), (314, 64245095), (445, 45332494), (785, 25698038), (890, 22666247), (1570, 12849019), (2047, 9854890), (3611, 5586530), (4094, 4927445), (6277, 3213790), (7222, 2793265), (10235, 1970978), (12554, 1606895), (13973, 1443710), (18055, 1117306), (20470, 985489), (27946, 721855), (31385, 642758), (36110, 558653), (62770, 321379), (69865, 288742), (139730, 144371)]