40041820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:492

約数の個数: 96

約数和(自身を含む): 105840000

約数和(自身を除く): 65798180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 449, 455, 490, 637, 686, 898, 910, 980, 1274, 1372, 1715, 1796, 1820, 2245, 2548, 3143, 3185, 3430, 4459, 4490, 5837, 6286, 6370, 6860, 8918, 8980, 11674, 12572, 12740, 15715, 17836, 22001, 22295, 23348, 29185, 31430, 40859, 44002, 44590, 58370, 62860, 81718, 88004, 89180, 110005, 116740, 154007, 163436, 204295, 220010, 286013, 308014, 408590, 440020, 572026, 616028, 770035, 817180, 1144052, 1430065, 1540070, 2002091, 2860130, 3080140, 4004182, 5720260, 8008364, 10010455, 20020910, 40041820]

約数ペア:

[(1, 40041820), (2, 20020910), (4, 10010455), (5, 8008364), (7, 5720260), (10, 4004182), (13, 3080140), (14, 2860130), (20, 2002091), (26, 1540070), (28, 1430065), (35, 1144052), (49, 817180), (52, 770035), (65, 616028), (70, 572026), (91, 440020), (98, 408590), (130, 308014), (140, 286013), (182, 220010), (196, 204295), (245, 163436), (260, 154007), (343, 116740), (364, 110005), (449, 89180), (455, 88004), (490, 81718), (637, 62860), (686, 58370), (898, 44590), (910, 44002), (980, 40859), (1274, 31430), (1372, 29185), (1715, 23348), (1796, 22295), (1820, 22001), (2245, 17836), (2548, 15715), (3143, 12740), (3185, 12572), (3430, 11674), (4459, 8980), (4490, 8918), (5837, 6860), (6286, 6370)]