290994340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{251}}^1$

素因数の和:307

約数の個数: 144

約数和(自身を含む): 774748800

約数和(自身を除く): 483754460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 251, 260, 338, 343, 364, 455, 490, 502, 637, 676, 686, 845, 910, 980, 1004, 1183, 1255, 1274, 1372, 1690, 1715, 1757, 1820, 2366, 2510, 2548, 3185, 3263, 3380, 3430, 3514, 4459, 4732, 5020, 5915, 6370, 6526, 6860, 7028, 8281, 8785, 8918, 11830, 12299, 12740, 13052, 16315, 16562, 17570, 17836, 22295, 22841, 23660, 24598, 32630, 33124, 35140, 41405, 42419, 44590, 45682, 49196, 57967, 61495, 65260, 82810, 84838, 86093, 89180, 91364, 114205, 115934, 122990, 159887, 165620, 169676, 172186, 212095, 228410, 231868, 245980, 289835, 296933, 319774, 344372, 424190, 430465, 456820, 579670, 593866, 639548, 799435, 848380, 860930, 1119209, 1159340, 1187732, 1484665, 1598870, 1721860, 2078531, 2238418, 2969330, 3197740, 4157062, 4476836, 5596045, 5938660, 8314124, 10392655, 11192090, 14549717, 20785310, 22384180, 29099434, 41570620, 58198868, 72748585, 145497170, 290994340]

約数ペア:

[(1, 290994340), (2, 145497170), (4, 72748585), (5, 58198868), (7, 41570620), (10, 29099434), (13, 22384180), (14, 20785310), (20, 14549717), (26, 11192090), (28, 10392655), (35, 8314124), (49, 5938660), (52, 5596045), (65, 4476836), (70, 4157062), (91, 3197740), (98, 2969330), (130, 2238418), (140, 2078531), (169, 1721860), (182, 1598870), (196, 1484665), (245, 1187732), (251, 1159340), (260, 1119209), (338, 860930), (343, 848380), (364, 799435), (455, 639548), (490, 593866), (502, 579670), (637, 456820), (676, 430465), (686, 424190), (845, 344372), (910, 319774), (980, 296933), (1004, 289835), (1183, 245980), (1255, 231868), (1274, 228410), (1372, 212095), (1690, 172186), (1715, 169676), (1757, 165620), (1820, 159887), (2366, 122990), (2510, 115934), (2548, 114205), (3185, 91364), (3263, 89180), (3380, 86093), (3430, 84838), (3514, 82810), (4459, 65260), (4732, 61495), (5020, 57967), (5915, 49196), (6370, 45682), (6526, 44590), (6860, 42419), (7028, 41405), (8281, 35140), (8785, 33124), (8918, 32630), (11830, 24598), (12299, 23660), (12740, 22841), (13052, 22295), (16315, 17836), (16562, 17570)]