213738980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{883}}^1$

素因数の和:938

約数の個数: 144

約数和(自身を含む): 592562880

約数和(自身を除く): 378823900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 49, 52, 65, 70, 76, 91, 95, 98, 130, 133, 140, 182, 190, 196, 245, 247, 260, 266, 364, 380, 455, 490, 494, 532, 637, 665, 883, 910, 931, 980, 988, 1235, 1274, 1330, 1729, 1766, 1820, 1862, 2470, 2548, 2660, 3185, 3458, 3532, 3724, 4415, 4655, 4940, 6181, 6370, 6916, 8645, 8830, 9310, 11479, 12103, 12362, 12740, 16777, 17290, 17660, 18620, 22958, 24206, 24724, 30905, 33554, 34580, 43267, 45916, 48412, 57395, 60515, 61810, 67108, 80353, 83885, 86534, 114790, 117439, 121030, 123620, 160706, 167770, 173068, 216335, 218101, 229580, 234878, 242060, 321412, 335540, 401765, 432670, 436202, 469756, 562471, 587195, 803530, 822073, 865340, 872404, 1090505, 1124942, 1174390, 1526707, 1607060, 1644146, 2181010, 2249884, 2348780, 2812355, 3053414, 3288292, 4110365, 4362020, 5624710, 6106828, 7633535, 8220730, 10686949, 11249420, 15267070, 16441460, 21373898, 30534140, 42747796, 53434745, 106869490, 213738980]

約数ペア:

[(1, 213738980), (2, 106869490), (4, 53434745), (5, 42747796), (7, 30534140), (10, 21373898), (13, 16441460), (14, 15267070), (19, 11249420), (20, 10686949), (26, 8220730), (28, 7633535), (35, 6106828), (38, 5624710), (49, 4362020), (52, 4110365), (65, 3288292), (70, 3053414), (76, 2812355), (91, 2348780), (95, 2249884), (98, 2181010), (130, 1644146), (133, 1607060), (140, 1526707), (182, 1174390), (190, 1124942), (196, 1090505), (245, 872404), (247, 865340), (260, 822073), (266, 803530), (364, 587195), (380, 562471), (455, 469756), (490, 436202), (494, 432670), (532, 401765), (637, 335540), (665, 321412), (883, 242060), (910, 234878), (931, 229580), (980, 218101), (988, 216335), (1235, 173068), (1274, 167770), (1330, 160706), (1729, 123620), (1766, 121030), (1820, 117439), (1862, 114790), (2470, 86534), (2548, 83885), (2660, 80353), (3185, 67108), (3458, 61810), (3532, 60515), (3724, 57395), (4415, 48412), (4655, 45916), (4940, 43267), (6181, 34580), (6370, 33554), (6916, 30905), (8645, 24724), (8830, 24206), (9310, 22958), (11479, 18620), (12103, 17660), (12362, 17290), (12740, 16777)]