253490720

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 192

約数和(自身を含む): 725760000

約数和(自身を除く): 472269280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 149, 155, 160, 196, 217, 224, 245, 248, 280, 298, 310, 343, 392, 434, 490, 496, 560, 596, 620, 686, 745, 784, 868, 980, 992, 1043, 1085, 1120, 1192, 1240, 1372, 1490, 1519, 1568, 1715, 1736, 1960, 2086, 2170, 2384, 2480, 2744, 2980, 3038, 3430, 3472, 3920, 4172, 4340, 4619, 4768, 4960, 5215, 5488, 5960, 6076, 6860, 6944, 7301, 7595, 7840, 8344, 8680, 9238, 10430, 10633, 10976, 11920, 12152, 13720, 14602, 15190, 16688, 17360, 18476, 20860, 21266, 23095, 23840, 24304, 27440, 29204, 30380, 32333, 33376, 34720, 36505, 36952, 41720, 42532, 46190, 48608, 51107, 53165, 54880, 58408, 60760, 64666, 73010, 73904, 83440, 85064, 92380, 102214, 106330, 116816, 121520, 129332, 146020, 147808, 161665, 166880, 170128, 184760, 204428, 212660, 226331, 233632, 243040, 255535, 258664, 292040, 323330, 340256, 369520, 408856, 425320, 452662, 511070, 517328, 584080, 646660, 739040, 817712, 850640, 905324, 1022140, 1034656, 1131655, 1168160, 1293320, 1584317, 1635424, 1701280, 1810648, 2044280, 2263310, 2586640, 3168634, 3621296, 4088560, 4526620, 5173280, 6337268, 7242592, 7921585, 8177120, 9053240, 12674536, 15843170, 18106480, 25349072, 31686340, 36212960, 50698144, 63372680, 126745360, 253490720]

約数ペア:

[(1, 253490720), (2, 126745360), (4, 63372680), (5, 50698144), (7, 36212960), (8, 31686340), (10, 25349072), (14, 18106480), (16, 15843170), (20, 12674536), (28, 9053240), (31, 8177120), (32, 7921585), (35, 7242592), (40, 6337268), (49, 5173280), (56, 4526620), (62, 4088560), (70, 3621296), (80, 3168634), (98, 2586640), (112, 2263310), (124, 2044280), (140, 1810648), (149, 1701280), (155, 1635424), (160, 1584317), (196, 1293320), (217, 1168160), (224, 1131655), (245, 1034656), (248, 1022140), (280, 905324), (298, 850640), (310, 817712), (343, 739040), (392, 646660), (434, 584080), (490, 517328), (496, 511070), (560, 452662), (596, 425320), (620, 408856), (686, 369520), (745, 340256), (784, 323330), (868, 292040), (980, 258664), (992, 255535), (1043, 243040), (1085, 233632), (1120, 226331), (1192, 212660), (1240, 204428), (1372, 184760), (1490, 170128), (1519, 166880), (1568, 161665), (1715, 147808), (1736, 146020), (1960, 129332), (2086, 121520), (2170, 116816), (2384, 106330), (2480, 102214), (2744, 92380), (2980, 85064), (3038, 83440), (3430, 73904), (3472, 73010), (3920, 64666), (4172, 60760), (4340, 58408), (4619, 54880), (4768, 53165), (4960, 51107), (5215, 48608), (5488, 46190), (5960, 42532), (6076, 41720), (6860, 36952), (6944, 36505), (7301, 34720), (7595, 33376), (7840, 32333), (8344, 30380), (8680, 29204), (9238, 27440), (10430, 24304), (10633, 23840), (10976, 23095), (11920, 21266), (12152, 20860), (13720, 18476), (14602, 17360), (15190, 16688)]