208968340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 544223232

約数和(自身を除く): 335254892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 73, 92, 98, 115, 127, 140, 146, 161, 196, 230, 245, 254, 292, 322, 365, 460, 490, 508, 511, 635, 644, 730, 805, 889, 980, 1022, 1127, 1270, 1460, 1610, 1679, 1778, 2044, 2254, 2540, 2555, 2921, 3220, 3358, 3556, 3577, 4445, 4508, 5110, 5635, 5842, 6223, 6716, 7154, 8395, 8890, 9271, 10220, 11270, 11684, 11753, 12446, 14308, 14605, 16790, 17780, 17885, 18542, 20447, 22540, 23506, 24892, 29210, 31115, 33580, 35770, 37084, 40894, 46355, 47012, 58420, 58765, 62230, 64897, 71540, 81788, 82271, 92710, 102235, 117530, 124460, 129794, 143129, 164542, 185420, 204470, 213233, 235060, 259588, 286258, 324485, 329084, 408940, 411355, 426466, 454279, 572516, 648970, 715645, 822710, 852932, 908558, 1066165, 1297940, 1431290, 1492631, 1645420, 1817116, 2132330, 2271395, 2862580, 2985262, 4264660, 4542790, 5970524, 7463155, 9085580, 10448417, 14926310, 20896834, 29852620, 41793668, 52242085, 104484170, 208968340]

約数ペア:

[(1, 208968340), (2, 104484170), (4, 52242085), (5, 41793668), (7, 29852620), (10, 20896834), (14, 14926310), (20, 10448417), (23, 9085580), (28, 7463155), (35, 5970524), (46, 4542790), (49, 4264660), (70, 2985262), (73, 2862580), (92, 2271395), (98, 2132330), (115, 1817116), (127, 1645420), (140, 1492631), (146, 1431290), (161, 1297940), (196, 1066165), (230, 908558), (245, 852932), (254, 822710), (292, 715645), (322, 648970), (365, 572516), (460, 454279), (490, 426466), (508, 411355), (511, 408940), (635, 329084), (644, 324485), (730, 286258), (805, 259588), (889, 235060), (980, 213233), (1022, 204470), (1127, 185420), (1270, 164542), (1460, 143129), (1610, 129794), (1679, 124460), (1778, 117530), (2044, 102235), (2254, 92710), (2540, 82271), (2555, 81788), (2921, 71540), (3220, 64897), (3358, 62230), (3556, 58765), (3577, 58420), (4445, 47012), (4508, 46355), (5110, 40894), (5635, 37084), (5842, 35770), (6223, 33580), (6716, 31115), (7154, 29210), (8395, 24892), (8890, 23506), (9271, 22540), (10220, 20447), (11270, 18542), (11684, 17885), (11753, 17780), (12446, 16790), (14308, 14605)]