161530460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:476

約数の個数: 144

約数和(自身を含む): 439729920

約数和(自身を除く): 278199460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 217, 245, 260, 310, 364, 403, 409, 434, 455, 490, 620, 637, 806, 818, 868, 910, 980, 1085, 1274, 1519, 1612, 1636, 1820, 2015, 2045, 2170, 2548, 2821, 2863, 3038, 3185, 4030, 4090, 4340, 5317, 5642, 5726, 6076, 6370, 7595, 8060, 8180, 10634, 11284, 11452, 12679, 12740, 14105, 14315, 15190, 19747, 20041, 21268, 25358, 26585, 28210, 28630, 30380, 37219, 39494, 40082, 50716, 53170, 56420, 57260, 63395, 74438, 78988, 80164, 88753, 98735, 100205, 106340, 126790, 148876, 164827, 177506, 186095, 197470, 200410, 253580, 260533, 329654, 355012, 372190, 394940, 400820, 443765, 521066, 621271, 659308, 744380, 824135, 887530, 1042132, 1153789, 1242542, 1302665, 1648270, 1775060, 2307578, 2485084, 2605330, 3106355, 3296540, 4615156, 5210660, 5768945, 6212710, 8076523, 11537890, 12425420, 16153046, 23075780, 32306092, 40382615, 80765230, 161530460]

約数ペア:

[(1, 161530460), (2, 80765230), (4, 40382615), (5, 32306092), (7, 23075780), (10, 16153046), (13, 12425420), (14, 11537890), (20, 8076523), (26, 6212710), (28, 5768945), (31, 5210660), (35, 4615156), (49, 3296540), (52, 3106355), (62, 2605330), (65, 2485084), (70, 2307578), (91, 1775060), (98, 1648270), (124, 1302665), (130, 1242542), (140, 1153789), (155, 1042132), (182, 887530), (196, 824135), (217, 744380), (245, 659308), (260, 621271), (310, 521066), (364, 443765), (403, 400820), (409, 394940), (434, 372190), (455, 355012), (490, 329654), (620, 260533), (637, 253580), (806, 200410), (818, 197470), (868, 186095), (910, 177506), (980, 164827), (1085, 148876), (1274, 126790), (1519, 106340), (1612, 100205), (1636, 98735), (1820, 88753), (2015, 80164), (2045, 78988), (2170, 74438), (2548, 63395), (2821, 57260), (2863, 56420), (3038, 53170), (3185, 50716), (4030, 40082), (4090, 39494), (4340, 37219), (5317, 30380), (5642, 28630), (5726, 28210), (6076, 26585), (6370, 25358), (7595, 21268), (8060, 20041), (8180, 19747), (10634, 15190), (11284, 14315), (11452, 14105), (12679, 12740)]