405195420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31121}}^1$

素因数の和:31171

約数の個数: 96

約数和(自身を含む): 1338494976

約数和(自身を除く): 933299556

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, 13020, 31121, 62242, 93363, 124484, 155605, 186726, 217847, 311210, 373452, 435694, 466815, 622420, 653541, 871388, 933630, 964751, 1089235, 1307082, 1867260, 1929502, 2178470, 2614164, 2894253, 3267705, 3859004, 4356940, 4823755, 5788506, 6535410, 6753257, 9647510, 11577012, 13070820, 13506514, 14471265, 19295020, 20259771, 27013028, 28942530, 33766285, 40519542, 57885060, 67532570, 81039084, 101298855, 135065140, 202597710, 405195420]

約数ペア:

[(1, 405195420), (2, 202597710), (3, 135065140), (4, 101298855), (5, 81039084), (6, 67532570), (7, 57885060), (10, 40519542), (12, 33766285), (14, 28942530), (15, 27013028), (20, 20259771), (21, 19295020), (28, 14471265), (30, 13506514), (31, 13070820), (35, 11577012), (42, 9647510), (60, 6753257), (62, 6535410), (70, 5788506), (84, 4823755), (93, 4356940), (105, 3859004), (124, 3267705), (140, 2894253), (155, 2614164), (186, 2178470), (210, 1929502), (217, 1867260), (310, 1307082), (372, 1089235), (420, 964751), (434, 933630), (465, 871388), (620, 653541), (651, 622420), (868, 466815), (930, 435694), (1085, 373452), (1302, 311210), (1860, 217847), (2170, 186726), (2604, 155605), (3255, 124484), (4340, 93363), (6510, 62242), (13020, 31121)]