77863940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 215115264

約数和(自身を除く): 137251324

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 233, 245, 308, 310, 341, 385, 434, 466, 490, 539, 620, 682, 770, 868, 932, 980, 1078, 1085, 1165, 1364, 1519, 1540, 1631, 1705, 2156, 2170, 2330, 2387, 2563, 2695, 3038, 3262, 3410, 4340, 4660, 4774, 5126, 5390, 6076, 6524, 6820, 7223, 7595, 8155, 9548, 10252, 10780, 11417, 11935, 12815, 14446, 15190, 16310, 16709, 17941, 22834, 23870, 25630, 28892, 30380, 32620, 33418, 35882, 36115, 45668, 47740, 50561, 51260, 57085, 66836, 71764, 72230, 79453, 83545, 89705, 101122, 114170, 125587, 144460, 158906, 167090, 179410, 202244, 228340, 251174, 252805, 317812, 334180, 353927, 358820, 397265, 502348, 505610, 556171, 627935, 707854, 794530, 1011220, 1112342, 1255870, 1415708, 1589060, 1769635, 2224684, 2511740, 2780855, 3539270, 3893197, 5561710, 7078540, 7786394, 11123420, 15572788, 19465985, 38931970, 77863940]

約数ペア:

[(1, 77863940), (2, 38931970), (4, 19465985), (5, 15572788), (7, 11123420), (10, 7786394), (11, 7078540), (14, 5561710), (20, 3893197), (22, 3539270), (28, 2780855), (31, 2511740), (35, 2224684), (44, 1769635), (49, 1589060), (55, 1415708), (62, 1255870), (70, 1112342), (77, 1011220), (98, 794530), (110, 707854), (124, 627935), (140, 556171), (154, 505610), (155, 502348), (196, 397265), (217, 358820), (220, 353927), (233, 334180), (245, 317812), (308, 252805), (310, 251174), (341, 228340), (385, 202244), (434, 179410), (466, 167090), (490, 158906), (539, 144460), (620, 125587), (682, 114170), (770, 101122), (868, 89705), (932, 83545), (980, 79453), (1078, 72230), (1085, 71764), (1165, 66836), (1364, 57085), (1519, 51260), (1540, 50561), (1631, 47740), (1705, 45668), (2156, 36115), (2170, 35882), (2330, 33418), (2387, 32620), (2563, 30380), (2695, 28892), (3038, 25630), (3262, 23870), (3410, 22834), (4340, 17941), (4660, 16709), (4774, 16310), (5126, 15190), (5390, 14446), (6076, 12815), (6524, 11935), (6820, 11417), (7223, 10780), (7595, 10252), (8155, 9548)]