680471820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{25717}}^1$

素因数の和:25749

約数の個数: 144

約数和(自身を含む): 2462755680

約数和(自身を除く): 1782283860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 8820, 13230, 25717, 26460, 51434, 77151, 102868, 128585, 154302, 180019, 231453, 257170, 308604, 360038, 385755, 462906, 514340, 540057, 694359, 720076, 771510, 900095, 925812, 1080114, 1157265, 1260133, 1388718, 1543020, 1620171, 1800190, 2160228, 2314530, 2520266, 2700285, 2777436, 3240342, 3471795, 3600380, 3780399, 4629060, 4860513, 5040532, 5400570, 6300665, 6480684, 6943590, 7560798, 8100855, 9721026, 10801140, 11341197, 12601330, 13887180, 15121596, 16201710, 18901995, 19442052, 22682394, 24302565, 25202660, 32403420, 34023591, 37803990, 45364788, 48605130, 56705985, 68047182, 75607980, 97210260, 113411970, 136094364, 170117955, 226823940, 340235910, 680471820]

約数ペア:

[(1, 680471820), (2, 340235910), (3, 226823940), (4, 170117955), (5, 136094364), (6, 113411970), (7, 97210260), (9, 75607980), (10, 68047182), (12, 56705985), (14, 48605130), (15, 45364788), (18, 37803990), (20, 34023591), (21, 32403420), (27, 25202660), (28, 24302565), (30, 22682394), (35, 19442052), (36, 18901995), (42, 16201710), (45, 15121596), (49, 13887180), (54, 12601330), (60, 11341197), (63, 10801140), (70, 9721026), (84, 8100855), (90, 7560798), (98, 6943590), (105, 6480684), (108, 6300665), (126, 5400570), (135, 5040532), (140, 4860513), (147, 4629060), (180, 3780399), (189, 3600380), (196, 3471795), (210, 3240342), (245, 2777436), (252, 2700285), (270, 2520266), (294, 2314530), (315, 2160228), (378, 1800190), (420, 1620171), (441, 1543020), (490, 1388718), (540, 1260133), (588, 1157265), (630, 1080114), (735, 925812), (756, 900095), (882, 771510), (945, 720076), (980, 694359), (1260, 540057), (1323, 514340), (1470, 462906), (1764, 385755), (1890, 360038), (2205, 308604), (2646, 257170), (2940, 231453), (3780, 180019), (4410, 154302), (5292, 128585), (6615, 102868), (8820, 77151), (13230, 51434), (25717, 26460)]