128668540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6467

約数の個数: 96

約数和(自身を含む): 362847744

約数和(自身を除く): 234179204

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 4004, 5005, 6427, 10010, 12854, 20020, 25708, 32135, 44989, 64270, 70697, 83551, 89978, 128540, 141394, 167102, 179956, 224945, 282788, 334204, 353485, 417755, 449890, 494879, 584857, 706970, 835510, 899780, 919061, 989758, 1169714, 1413940, 1671020, 1838122, 1979516, 2339428, 2474395, 2924285, 3676244, 4595305, 4948790, 5848570, 6433427, 9190610, 9897580, 11697140, 12866854, 18381220, 25733708, 32167135, 64334270, 128668540]

約数ペア:

[(1, 128668540), (2, 64334270), (4, 32167135), (5, 25733708), (7, 18381220), (10, 12866854), (11, 11697140), (13, 9897580), (14, 9190610), (20, 6433427), (22, 5848570), (26, 4948790), (28, 4595305), (35, 3676244), (44, 2924285), (52, 2474395), (55, 2339428), (65, 1979516), (70, 1838122), (77, 1671020), (91, 1413940), (110, 1169714), (130, 989758), (140, 919061), (143, 899780), (154, 835510), (182, 706970), (220, 584857), (260, 494879), (286, 449890), (308, 417755), (364, 353485), (385, 334204), (455, 282788), (572, 224945), (715, 179956), (770, 167102), (910, 141394), (1001, 128540), (1430, 89978), (1540, 83551), (1820, 70697), (2002, 64270), (2860, 44989), (4004, 32135), (5005, 25708), (6427, 20020), (10010, 12854)]