21700005550

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{83}}^2\times {\mathrm{863}}^1$

素因数の和:1114

約数の個数: 72

約数和(自身を含む): 41461792704

約数和(自身を除く): 19761787154

約数列:

[1, 2, 5, 10, 25, 50, 73, 83, 146, 166, 365, 415, 730, 830, 863, 1726, 1825, 2075, 3650, 4150, 4315, 6059, 6889, 8630, 12118, 13778, 21575, 30295, 34445, 43150, 60590, 62999, 68890, 71629, 125998, 143258, 151475, 172225, 302950, 314995, 344450, 358145, 502897, 629990, 716290, 1005794, 1574975, 1790725, 2514485, 3149950, 3581450, 5028970, 5228917, 5945207, 10457834, 11890414, 12572425, 25144850, 26144585, 29726035, 52289170, 59452070, 130722925, 148630175, 261445850, 297260350, 434000111, 868000222, 2170000555, 4340001110, 10850002775, 21700005550]

約数ペア:

[(1, 21700005550), (2, 10850002775), (5, 4340001110), (10, 2170000555), (25, 868000222), (50, 434000111), (73, 297260350), (83, 261445850), (146, 148630175), (166, 130722925), (365, 59452070), (415, 52289170), (730, 29726035), (830, 26144585), (863, 25144850), (1726, 12572425), (1825, 11890414), (2075, 10457834), (3650, 5945207), (4150, 5228917), (4315, 5028970), (6059, 3581450), (6889, 3149950), (8630, 2514485), (12118, 1790725), (13778, 1574975), (21575, 1005794), (30295, 716290), (34445, 629990), (43150, 502897), (60590, 358145), (62999, 344450), (68890, 314995), (71629, 302950), (125998, 172225), (143258, 151475)]