221340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:67

約数の個数: 96

約数和(自身を含む): 774144

約数和(自身を除く): 552804

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 31, 34, 35, 42, 51, 60, 62, 68, 70, 84, 85, 93, 102, 105, 119, 124, 140, 155, 170, 186, 204, 210, 217, 238, 255, 310, 340, 357, 372, 420, 434, 465, 476, 510, 527, 595, 620, 651, 714, 868, 930, 1020, 1054, 1085, 1190, 1302, 1428, 1581, 1785, 1860, 2108, 2170, 2380, 2604, 2635, 3162, 3255, 3570, 3689, 4340, 5270, 6324, 6510, 7140, 7378, 7905, 10540, 11067, 13020, 14756, 15810, 18445, 22134, 31620, 36890, 44268, 55335, 73780, 110670, 221340]

約数ペア:

[(1, 221340), (2, 110670), (3, 73780), (4, 55335), (5, 44268), (6, 36890), (7, 31620), (10, 22134), (12, 18445), (14, 15810), (15, 14756), (17, 13020), (20, 11067), (21, 10540), (28, 7905), (30, 7378), (31, 7140), (34, 6510), (35, 6324), (42, 5270), (51, 4340), (60, 3689), (62, 3570), (68, 3255), (70, 3162), (84, 2635), (85, 2604), (93, 2380), (102, 2170), (105, 2108), (119, 1860), (124, 1785), (140, 1581), (155, 1428), (170, 1302), (186, 1190), (204, 1085), (210, 1054), (217, 1020), (238, 930), (255, 868), (310, 714), (340, 651), (357, 620), (372, 595), (420, 527), (434, 510), (465, 476)]