21925680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:475

約数の個数: 160

約数和(自身を含む): 80375808

約数和(自身を除く): 58450128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 421, 434, 465, 496, 560, 620, 651, 744, 840, 842, 868, 930, 1085, 1240, 1263, 1302, 1488, 1680, 1684, 1736, 1860, 2105, 2170, 2480, 2526, 2604, 2947, 3255, 3368, 3472, 3720, 4210, 4340, 5052, 5208, 5894, 6315, 6510, 6736, 7440, 8420, 8680, 8841, 10104, 10416, 11788, 12630, 13020, 13051, 14735, 16840, 17360, 17682, 20208, 23576, 25260, 26040, 26102, 29470, 33680, 35364, 39153, 44205, 47152, 50520, 52080, 52204, 58940, 65255, 70728, 78306, 88410, 91357, 101040, 104408, 117880, 130510, 141456, 156612, 176820, 182714, 195765, 208816, 235760, 261020, 274071, 313224, 353640, 365428, 391530, 456785, 522040, 548142, 626448, 707280, 730856, 783060, 913570, 1044080, 1096284, 1370355, 1461712, 1566120, 1827140, 2192568, 2740710, 3132240, 3654280, 4385136, 5481420, 7308560, 10962840, 21925680]

約数ペア:

[(1, 21925680), (2, 10962840), (3, 7308560), (4, 5481420), (5, 4385136), (6, 3654280), (7, 3132240), (8, 2740710), (10, 2192568), (12, 1827140), (14, 1566120), (15, 1461712), (16, 1370355), (20, 1096284), (21, 1044080), (24, 913570), (28, 783060), (30, 730856), (31, 707280), (35, 626448), (40, 548142), (42, 522040), (48, 456785), (56, 391530), (60, 365428), (62, 353640), (70, 313224), (80, 274071), (84, 261020), (93, 235760), (105, 208816), (112, 195765), (120, 182714), (124, 176820), (140, 156612), (155, 141456), (168, 130510), (186, 117880), (210, 104408), (217, 101040), (240, 91357), (248, 88410), (280, 78306), (310, 70728), (336, 65255), (372, 58940), (420, 52204), (421, 52080), (434, 50520), (465, 47152), (496, 44205), (560, 39153), (620, 35364), (651, 33680), (744, 29470), (840, 26102), (842, 26040), (868, 25260), (930, 23576), (1085, 20208), (1240, 17682), (1263, 17360), (1302, 16840), (1488, 14735), (1680, 13051), (1684, 13020), (1736, 12630), (1860, 11788), (2105, 10416), (2170, 10104), (2480, 8841), (2526, 8680), (2604, 8420), (2947, 7440), (3255, 6736), (3368, 6510), (3472, 6315), (3720, 5894), (4210, 5208), (4340, 5052)]