91991900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{919}}^1$

素因数の和:964

約数の個数: 144

約数和(自身を含む): 268316160

約数和(自身を除く): 176324260

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 130, 140, 143, 154, 175, 182, 220, 260, 275, 286, 308, 325, 350, 364, 385, 455, 550, 572, 650, 700, 715, 770, 910, 919, 1001, 1100, 1300, 1430, 1540, 1820, 1838, 1925, 2002, 2275, 2860, 3575, 3676, 3850, 4004, 4550, 4595, 5005, 6433, 7150, 7700, 9100, 9190, 10010, 10109, 11947, 12866, 14300, 18380, 20020, 20218, 22975, 23894, 25025, 25732, 32165, 40436, 45950, 47788, 50050, 50545, 59735, 64330, 70763, 83629, 91900, 100100, 101090, 119470, 128660, 131417, 141526, 160825, 167258, 202180, 238940, 252725, 262834, 283052, 298675, 321650, 334516, 353815, 418145, 505450, 525668, 597350, 643300, 657085, 707630, 836290, 919919, 1010900, 1194700, 1314170, 1415260, 1672580, 1769075, 1839838, 2090725, 2628340, 3285425, 3538150, 3679676, 4181450, 4599595, 6570850, 7076300, 8362900, 9199190, 13141700, 18398380, 22997975, 45995950, 91991900]

約数ペア:

[(1, 91991900), (2, 45995950), (4, 22997975), (5, 18398380), (7, 13141700), (10, 9199190), (11, 8362900), (13, 7076300), (14, 6570850), (20, 4599595), (22, 4181450), (25, 3679676), (26, 3538150), (28, 3285425), (35, 2628340), (44, 2090725), (50, 1839838), (52, 1769075), (55, 1672580), (65, 1415260), (70, 1314170), (77, 1194700), (91, 1010900), (100, 919919), (110, 836290), (130, 707630), (140, 657085), (143, 643300), (154, 597350), (175, 525668), (182, 505450), (220, 418145), (260, 353815), (275, 334516), (286, 321650), (308, 298675), (325, 283052), (350, 262834), (364, 252725), (385, 238940), (455, 202180), (550, 167258), (572, 160825), (650, 141526), (700, 131417), (715, 128660), (770, 119470), (910, 101090), (919, 100100), (1001, 91900), (1100, 83629), (1300, 70763), (1430, 64330), (1540, 59735), (1820, 50545), (1838, 50050), (1925, 47788), (2002, 45950), (2275, 40436), (2860, 32165), (3575, 25732), (3676, 25025), (3850, 23894), (4004, 22975), (4550, 20218), (4595, 20020), (5005, 18380), (6433, 14300), (7150, 12866), (7700, 11947), (9100, 10109), (9190, 10010)]