18335691220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89521}}^1$

素因数の和:89574

約数の個数: 144

約数和(自身を含む): 51435760320

約数和(自身を除く): 33100069100

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 266, 308, 380, 385, 418, 490, 532, 539, 665, 770, 836, 931, 980, 1045, 1078, 1330, 1463, 1540, 1862, 2090, 2156, 2660, 2695, 2926, 3724, 4180, 4655, 5390, 5852, 7315, 9310, 10241, 10780, 14630, 18620, 20482, 29260, 40964, 51205, 89521, 102410, 179042, 204820, 358084, 447605, 626647, 895210, 984731, 1253294, 1700899, 1790420, 1969462, 2506588, 3133235, 3401798, 3938924, 4386529, 4923655, 6266470, 6803596, 6893117, 8504495, 8773058, 9847310, 11906293, 12532940, 13786234, 17008990, 17546116, 18709889, 19694620, 21932645, 23812586, 27572468, 34017980, 34465585, 37419778, 43865290, 47625172, 48251819, 59531465, 68931170, 74839556, 83344051, 87730580, 93549445, 96503638, 119062930, 130969223, 137862340, 166688102, 187098890, 193007276, 238125860, 241259095, 261938446, 333376204, 374197780, 416720255, 482518190, 523876892, 654846115, 833440510, 916784561, 965036380, 1309692230, 1666881020, 1833569122, 2619384460, 3667138244, 4583922805, 9167845610, 18335691220]

約数ペア:

[(1, 18335691220), (2, 9167845610), (4, 4583922805), (5, 3667138244), (7, 2619384460), (10, 1833569122), (11, 1666881020), (14, 1309692230), (19, 965036380), (20, 916784561), (22, 833440510), (28, 654846115), (35, 523876892), (38, 482518190), (44, 416720255), (49, 374197780), (55, 333376204), (70, 261938446), (76, 241259095), (77, 238125860), (95, 193007276), (98, 187098890), (110, 166688102), (133, 137862340), (140, 130969223), (154, 119062930), (190, 96503638), (196, 93549445), (209, 87730580), (220, 83344051), (245, 74839556), (266, 68931170), (308, 59531465), (380, 48251819), (385, 47625172), (418, 43865290), (490, 37419778), (532, 34465585), (539, 34017980), (665, 27572468), (770, 23812586), (836, 21932645), (931, 19694620), (980, 18709889), (1045, 17546116), (1078, 17008990), (1330, 13786234), (1463, 12532940), (1540, 11906293), (1862, 9847310), (2090, 8773058), (2156, 8504495), (2660, 6893117), (2695, 6803596), (2926, 6266470), (3724, 4923655), (4180, 4386529), (4655, 3938924), (5390, 3401798), (5852, 3133235), (7315, 2506588), (9310, 1969462), (10241, 1790420), (10780, 1700899), (14630, 1253294), (18620, 984731), (20482, 895210), (29260, 626647), (40964, 447605), (51205, 358084), (89521, 204820), (102410, 179042)]