128989140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9907}}^1$

素因数の和:9957

約数の個数: 96

約数和(自身を含む): 426123264

約数和(自身を除く): 297134124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6510, 9907, 13020, 19814, 29721, 39628, 49535, 59442, 69349, 99070, 118884, 138698, 148605, 198140, 208047, 277396, 297210, 307117, 346745, 416094, 594420, 614234, 693490, 832188, 921351, 1040235, 1228468, 1386980, 1535585, 1842702, 2080470, 2149819, 3071170, 3685404, 4160940, 4299638, 4606755, 6142340, 6449457, 8599276, 9213510, 10749095, 12898914, 18427020, 21498190, 25797828, 32247285, 42996380, 64494570, 128989140]

約数ペア:

[(1, 128989140), (2, 64494570), (3, 42996380), (4, 32247285), (5, 25797828), (6, 21498190), (7, 18427020), (10, 12898914), (12, 10749095), (14, 9213510), (15, 8599276), (20, 6449457), (21, 6142340), (28, 4606755), (30, 4299638), (31, 4160940), (35, 3685404), (42, 3071170), (60, 2149819), (62, 2080470), (70, 1842702), (84, 1535585), (93, 1386980), (105, 1228468), (124, 1040235), (140, 921351), (155, 832188), (186, 693490), (210, 614234), (217, 594420), (310, 416094), (372, 346745), (420, 307117), (434, 297210), (465, 277396), (620, 208047), (651, 198140), (868, 148605), (930, 138698), (1085, 118884), (1302, 99070), (1860, 69349), (2170, 59442), (2604, 49535), (3255, 39628), (4340, 29721), (6510, 19814), (9907, 13020)]