138749380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 377600832

約数和(自身を除く): 238851452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 61, 70, 77, 98, 110, 122, 140, 154, 196, 211, 220, 244, 245, 305, 308, 385, 422, 427, 490, 539, 610, 671, 770, 844, 854, 980, 1055, 1078, 1220, 1342, 1477, 1540, 1708, 2110, 2135, 2156, 2321, 2684, 2695, 2954, 2989, 3355, 4220, 4270, 4642, 4697, 5390, 5908, 5978, 6710, 7385, 8540, 9284, 9394, 10339, 10780, 11605, 11956, 12871, 13420, 14770, 14945, 16247, 18788, 20678, 23210, 23485, 25742, 29540, 29890, 32494, 32879, 41356, 46420, 46970, 51484, 51695, 59780, 64355, 64988, 65758, 81235, 90097, 93940, 103390, 113729, 128710, 131516, 141581, 162470, 164395, 180194, 206780, 227458, 257420, 283162, 324940, 328790, 360388, 450485, 454916, 566324, 568645, 630679, 657580, 707905, 900970, 991067, 1137290, 1261358, 1415810, 1801940, 1982134, 2274580, 2522716, 2831620, 3153395, 3964268, 4955335, 6306790, 6937469, 9910670, 12613580, 13874938, 19821340, 27749876, 34687345, 69374690, 138749380]

約数ペア:

[(1, 138749380), (2, 69374690), (4, 34687345), (5, 27749876), (7, 19821340), (10, 13874938), (11, 12613580), (14, 9910670), (20, 6937469), (22, 6306790), (28, 4955335), (35, 3964268), (44, 3153395), (49, 2831620), (55, 2522716), (61, 2274580), (70, 1982134), (77, 1801940), (98, 1415810), (110, 1261358), (122, 1137290), (140, 991067), (154, 900970), (196, 707905), (211, 657580), (220, 630679), (244, 568645), (245, 566324), (305, 454916), (308, 450485), (385, 360388), (422, 328790), (427, 324940), (490, 283162), (539, 257420), (610, 227458), (671, 206780), (770, 180194), (844, 164395), (854, 162470), (980, 141581), (1055, 131516), (1078, 128710), (1220, 113729), (1342, 103390), (1477, 93940), (1540, 90097), (1708, 81235), (2110, 65758), (2135, 64988), (2156, 64355), (2321, 59780), (2684, 51695), (2695, 51484), (2954, 46970), (2989, 46420), (3355, 41356), (4220, 32879), (4270, 32494), (4642, 29890), (4697, 29540), (5390, 25742), (5908, 23485), (5978, 23210), (6710, 20678), (7385, 18788), (8540, 16247), (9284, 14945), (9394, 14770), (10339, 13420), (10780, 12871), (11605, 11956)]