161967540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:734

約数の個数: 144

約数和(自身を含む): 534340800

約数和(自身を除く): 372373260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 89, 98, 105, 140, 147, 178, 196, 210, 245, 267, 294, 356, 420, 445, 490, 534, 588, 619, 623, 735, 890, 980, 1068, 1238, 1246, 1335, 1470, 1780, 1857, 1869, 2476, 2492, 2670, 2940, 3095, 3115, 3714, 3738, 4333, 4361, 5340, 6190, 6230, 7428, 7476, 8666, 8722, 9285, 9345, 12380, 12460, 12999, 13083, 17332, 17444, 18570, 18690, 21665, 21805, 25998, 26166, 30331, 37140, 37380, 43330, 43610, 51996, 52332, 55091, 60662, 64995, 65415, 86660, 87220, 90993, 110182, 121324, 129990, 130830, 151655, 165273, 181986, 220364, 259980, 261660, 275455, 303310, 330546, 363972, 385637, 454965, 550910, 606620, 661092, 771274, 826365, 909930, 1101820, 1156911, 1542548, 1652730, 1819860, 1928185, 2313822, 2699459, 3305460, 3856370, 4627644, 5398918, 5784555, 7712740, 8098377, 10797836, 11569110, 13497295, 16196754, 23138220, 26994590, 32393508, 40491885, 53989180, 80983770, 161967540]

約数ペア:

[(1, 161967540), (2, 80983770), (3, 53989180), (4, 40491885), (5, 32393508), (6, 26994590), (7, 23138220), (10, 16196754), (12, 13497295), (14, 11569110), (15, 10797836), (20, 8098377), (21, 7712740), (28, 5784555), (30, 5398918), (35, 4627644), (42, 3856370), (49, 3305460), (60, 2699459), (70, 2313822), (84, 1928185), (89, 1819860), (98, 1652730), (105, 1542548), (140, 1156911), (147, 1101820), (178, 909930), (196, 826365), (210, 771274), (245, 661092), (267, 606620), (294, 550910), (356, 454965), (420, 385637), (445, 363972), (490, 330546), (534, 303310), (588, 275455), (619, 261660), (623, 259980), (735, 220364), (890, 181986), (980, 165273), (1068, 151655), (1238, 130830), (1246, 129990), (1335, 121324), (1470, 110182), (1780, 90993), (1857, 87220), (1869, 86660), (2476, 65415), (2492, 64995), (2670, 60662), (2940, 55091), (3095, 52332), (3115, 51996), (3714, 43610), (3738, 43330), (4333, 37380), (4361, 37140), (5340, 30331), (6190, 26166), (6230, 25998), (7428, 21805), (7476, 21665), (8666, 18690), (8722, 18570), (9285, 17444), (9345, 17332), (12380, 13083), (12460, 12999)]