2638720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:76

約数の個数: 128

約数和(自身を含む): 7833600

約数和(自身を除く): 5194880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 112, 124, 128, 133, 140, 152, 155, 160, 190, 217, 224, 248, 266, 280, 304, 310, 320, 380, 434, 448, 496, 532, 560, 589, 608, 620, 640, 665, 760, 868, 896, 992, 1064, 1085, 1120, 1178, 1216, 1240, 1330, 1520, 1736, 1984, 2128, 2170, 2240, 2356, 2432, 2480, 2660, 2945, 3040, 3472, 3968, 4123, 4256, 4340, 4480, 4712, 4960, 5320, 5890, 6080, 6944, 8246, 8512, 8680, 9424, 9920, 10640, 11780, 12160, 13888, 16492, 17024, 17360, 18848, 19840, 20615, 21280, 23560, 27776, 32984, 34720, 37696, 41230, 42560, 47120, 65968, 69440, 75392, 82460, 85120, 94240, 131936, 138880, 164920, 188480, 263872, 329840, 376960, 527744, 659680, 1319360, 2638720]

約数ペア:

[(1, 2638720), (2, 1319360), (4, 659680), (5, 527744), (7, 376960), (8, 329840), (10, 263872), (14, 188480), (16, 164920), (19, 138880), (20, 131936), (28, 94240), (31, 85120), (32, 82460), (35, 75392), (38, 69440), (40, 65968), (56, 47120), (62, 42560), (64, 41230), (70, 37696), (76, 34720), (80, 32984), (95, 27776), (112, 23560), (124, 21280), (128, 20615), (133, 19840), (140, 18848), (152, 17360), (155, 17024), (160, 16492), (190, 13888), (217, 12160), (224, 11780), (248, 10640), (266, 9920), (280, 9424), (304, 8680), (310, 8512), (320, 8246), (380, 6944), (434, 6080), (448, 5890), (496, 5320), (532, 4960), (560, 4712), (589, 4480), (608, 4340), (620, 4256), (640, 4123), (665, 3968), (760, 3472), (868, 3040), (896, 2945), (992, 2660), (1064, 2480), (1085, 2432), (1120, 2356), (1178, 2240), (1216, 2170), (1240, 2128), (1330, 1984), (1520, 1736)]