49789880

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 138240000

約数和(自身を除く): 88450120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 191, 196, 245, 266, 280, 343, 380, 382, 392, 490, 532, 665, 686, 760, 764, 931, 955, 980, 1064, 1330, 1337, 1372, 1528, 1715, 1862, 1910, 1960, 2660, 2674, 2744, 3430, 3629, 3724, 3820, 4655, 5320, 5348, 6517, 6685, 6860, 7258, 7448, 7640, 9310, 9359, 10696, 13034, 13370, 13720, 14516, 18145, 18620, 18718, 25403, 26068, 26740, 29032, 32585, 36290, 37240, 37436, 46795, 50806, 52136, 53480, 65170, 65513, 72580, 74872, 93590, 101612, 127015, 130340, 131026, 145160, 177821, 187180, 203224, 254030, 260680, 262052, 327565, 355642, 374360, 508060, 524104, 655130, 711284, 889105, 1016120, 1244747, 1310260, 1422568, 1778210, 2489494, 2620520, 3556420, 4978988, 6223735, 7112840, 9957976, 12447470, 24894940, 49789880]

約数ペア:

[(1, 49789880), (2, 24894940), (4, 12447470), (5, 9957976), (7, 7112840), (8, 6223735), (10, 4978988), (14, 3556420), (19, 2620520), (20, 2489494), (28, 1778210), (35, 1422568), (38, 1310260), (40, 1244747), (49, 1016120), (56, 889105), (70, 711284), (76, 655130), (95, 524104), (98, 508060), (133, 374360), (140, 355642), (152, 327565), (190, 262052), (191, 260680), (196, 254030), (245, 203224), (266, 187180), (280, 177821), (343, 145160), (380, 131026), (382, 130340), (392, 127015), (490, 101612), (532, 93590), (665, 74872), (686, 72580), (760, 65513), (764, 65170), (931, 53480), (955, 52136), (980, 50806), (1064, 46795), (1330, 37436), (1337, 37240), (1372, 36290), (1528, 32585), (1715, 29032), (1862, 26740), (1910, 26068), (1960, 25403), (2660, 18718), (2674, 18620), (2744, 18145), (3430, 14516), (3629, 13720), (3724, 13370), (3820, 13034), (4655, 10696), (5320, 9359), (5348, 9310), (6517, 7640), (6685, 7448), (6860, 7258)]