131810980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7079}}^1$

素因数の和:7121

約数の個数: 72

約数和(自身を含む): 338990400

約数和(自身を除く): 207179420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 7079, 9310, 14158, 18620, 28316, 35395, 49553, 70790, 99106, 134501, 141580, 198212, 247765, 269002, 346871, 495530, 538004, 672505, 693742, 941507, 991060, 1345010, 1387484, 1734355, 1883014, 2690020, 3468710, 3766028, 4707535, 6590549, 6937420, 9415070, 13181098, 18830140, 26362196, 32952745, 65905490, 131810980]

約数ペア:

[(1, 131810980), (2, 65905490), (4, 32952745), (5, 26362196), (7, 18830140), (10, 13181098), (14, 9415070), (19, 6937420), (20, 6590549), (28, 4707535), (35, 3766028), (38, 3468710), (49, 2690020), (70, 1883014), (76, 1734355), (95, 1387484), (98, 1345010), (133, 991060), (140, 941507), (190, 693742), (196, 672505), (245, 538004), (266, 495530), (380, 346871), (490, 269002), (532, 247765), (665, 198212), (931, 141580), (980, 134501), (1330, 99106), (1862, 70790), (2660, 49553), (3724, 35395), (4655, 28316), (7079, 18620), (9310, 14158)]