16912980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 60662784

約数和(自身を除く): 43749804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 433, 434, 465, 558, 620, 630, 651, 866, 868, 930, 1085, 1116, 1260, 1299, 1302, 1395, 1732, 1860, 1953, 2165, 2170, 2598, 2604, 2790, 3031, 3255, 3897, 3906, 4330, 4340, 5196, 5580, 6062, 6495, 6510, 7794, 7812, 8660, 9093, 9765, 12124, 12990, 13020, 13423, 15155, 15588, 18186, 19485, 19530, 25980, 26846, 27279, 30310, 36372, 38970, 39060, 40269, 45465, 53692, 54558, 60620, 67115, 77940, 80538, 90930, 93961, 109116, 120807, 134230, 136395, 161076, 181860, 187922, 201345, 241614, 268460, 272790, 281883, 375844, 402690, 469805, 483228, 545580, 563766, 604035, 805380, 845649, 939610, 1127532, 1208070, 1409415, 1691298, 1879220, 2416140, 2818830, 3382596, 4228245, 5637660, 8456490, 16912980]

約数ペア:

[(1, 16912980), (2, 8456490), (3, 5637660), (4, 4228245), (5, 3382596), (6, 2818830), (7, 2416140), (9, 1879220), (10, 1691298), (12, 1409415), (14, 1208070), (15, 1127532), (18, 939610), (20, 845649), (21, 805380), (28, 604035), (30, 563766), (31, 545580), (35, 483228), (36, 469805), (42, 402690), (45, 375844), (60, 281883), (62, 272790), (63, 268460), (70, 241614), (84, 201345), (90, 187922), (93, 181860), (105, 161076), (124, 136395), (126, 134230), (140, 120807), (155, 109116), (180, 93961), (186, 90930), (210, 80538), (217, 77940), (252, 67115), (279, 60620), (310, 54558), (315, 53692), (372, 45465), (420, 40269), (433, 39060), (434, 38970), (465, 36372), (558, 30310), (620, 27279), (630, 26846), (651, 25980), (866, 19530), (868, 19485), (930, 18186), (1085, 15588), (1116, 15155), (1260, 13423), (1299, 13020), (1302, 12990), (1395, 12124), (1732, 9765), (1860, 9093), (1953, 8660), (2165, 7812), (2170, 7794), (2598, 6510), (2604, 6495), (2790, 6062), (3031, 5580), (3255, 5196), (3897, 4340), (3906, 4330)]