19977573784

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{17623}}^1$

素因数の和:18320

約数の個数: 64

約数和(自身を含む): 44260208640

約数和(自身を除く): 24282634856

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 653, 868, 1306, 1736, 2612, 4571, 5224, 9142, 17623, 18284, 20243, 35246, 36568, 40486, 70492, 80972, 123361, 140984, 141701, 161944, 246722, 283402, 493444, 546313, 566804, 986888, 1092626, 1133608, 2185252, 3824191, 4370504, 7648382, 11507819, 15296764, 23015638, 30593528, 46031276, 80554733, 92062552, 161109466, 322218932, 356742389, 644437864, 713484778, 1426969556, 2497196723, 2853939112, 4994393446, 9988786892, 19977573784]

約数ペア:

[(1, 19977573784), (2, 9988786892), (4, 4994393446), (7, 2853939112), (8, 2497196723), (14, 1426969556), (28, 713484778), (31, 644437864), (56, 356742389), (62, 322218932), (124, 161109466), (217, 92062552), (248, 80554733), (434, 46031276), (653, 30593528), (868, 23015638), (1306, 15296764), (1736, 11507819), (2612, 7648382), (4571, 4370504), (5224, 3824191), (9142, 2185252), (17623, 1133608), (18284, 1092626), (20243, 986888), (35246, 566804), (36568, 546313), (40486, 493444), (70492, 283402), (80972, 246722), (123361, 161944), (140984, 141701)]