388618945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 574801920

約数和(自身を除く): 186182975

約数列:

[1, 5, 11, 13, 31, 55, 65, 89, 143, 155, 197, 341, 403, 445, 715, 979, 985, 1157, 1705, 2015, 2167, 2561, 2759, 4433, 4895, 5785, 6107, 10835, 12727, 12805, 13795, 17533, 22165, 28171, 30349, 30535, 35867, 63635, 67177, 79391, 87665, 140855, 151745, 179335, 192863, 227929, 335885, 394537, 396955, 543523, 873301, 964315, 1139645, 1972685, 2507219, 2717615, 4366505, 5978753, 7065799, 12536095, 29893765, 35328995, 77723789, 388618945]

約数ペア:

[(1, 388618945), (5, 77723789), (11, 35328995), (13, 29893765), (31, 12536095), (55, 7065799), (65, 5978753), (89, 4366505), (143, 2717615), (155, 2507219), (197, 1972685), (341, 1139645), (403, 964315), (445, 873301), (715, 543523), (979, 396955), (985, 394537), (1157, 335885), (1705, 227929), (2015, 192863), (2167, 179335), (2561, 151745), (2759, 140855), (4433, 87665), (4895, 79391), (5785, 67177), (6107, 63635), (10835, 35867), (12727, 30535), (12805, 30349), (13795, 28171), (17533, 22165)]