208474420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:350

約数の個数: 144

約数和(自身を含む): 564677568

約数和(自身を除く): 356203148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 83, 98, 110, 140, 154, 166, 196, 220, 233, 245, 308, 332, 385, 415, 466, 490, 539, 581, 770, 830, 913, 932, 980, 1078, 1162, 1165, 1540, 1631, 1660, 1826, 2156, 2324, 2330, 2563, 2695, 2905, 3262, 3652, 4067, 4565, 4660, 5126, 5390, 5810, 6391, 6524, 8134, 8155, 9130, 10252, 10780, 11417, 11620, 12782, 12815, 16268, 16310, 17941, 18260, 19339, 20335, 22834, 25564, 25630, 31955, 32620, 35882, 38678, 40670, 44737, 45668, 51260, 57085, 63910, 71764, 77356, 81340, 89474, 89705, 96695, 114170, 125587, 127820, 135373, 178948, 179410, 193390, 212729, 223685, 228340, 251174, 270746, 358820, 386780, 425458, 447370, 502348, 541492, 627935, 676865, 850916, 894740, 947611, 1063645, 1255870, 1353730, 1489103, 1895222, 2127290, 2511740, 2707460, 2978206, 3790444, 4254580, 4738055, 5956412, 7445515, 9476110, 10423721, 14891030, 18952220, 20847442, 29782060, 41694884, 52118605, 104237210, 208474420]

約数ペア:

[(1, 208474420), (2, 104237210), (4, 52118605), (5, 41694884), (7, 29782060), (10, 20847442), (11, 18952220), (14, 14891030), (20, 10423721), (22, 9476110), (28, 7445515), (35, 5956412), (44, 4738055), (49, 4254580), (55, 3790444), (70, 2978206), (77, 2707460), (83, 2511740), (98, 2127290), (110, 1895222), (140, 1489103), (154, 1353730), (166, 1255870), (196, 1063645), (220, 947611), (233, 894740), (245, 850916), (308, 676865), (332, 627935), (385, 541492), (415, 502348), (466, 447370), (490, 425458), (539, 386780), (581, 358820), (770, 270746), (830, 251174), (913, 228340), (932, 223685), (980, 212729), (1078, 193390), (1162, 179410), (1165, 178948), (1540, 135373), (1631, 127820), (1660, 125587), (1826, 114170), (2156, 96695), (2324, 89705), (2330, 89474), (2563, 81340), (2695, 77356), (2905, 71764), (3262, 63910), (3652, 57085), (4067, 51260), (4565, 45668), (4660, 44737), (5126, 40670), (5390, 38678), (5810, 35882), (6391, 32620), (6524, 31955), (8134, 25630), (8155, 25564), (9130, 22834), (10252, 20335), (10780, 19339), (11417, 18260), (11620, 17941), (12782, 16310), (12815, 16268)]