138268520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 355168800

約数和(自身を除く): 216900280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 53, 58, 65, 104, 106, 116, 130, 145, 173, 212, 232, 260, 265, 290, 346, 377, 424, 520, 530, 580, 689, 692, 754, 865, 1060, 1160, 1378, 1384, 1508, 1537, 1730, 1885, 2120, 2249, 2756, 3016, 3074, 3445, 3460, 3770, 4498, 5017, 5512, 6148, 6890, 6920, 7540, 7685, 8996, 9169, 10034, 11245, 12296, 13780, 15080, 15370, 17992, 18338, 19981, 20068, 22490, 25085, 27560, 30740, 36676, 39962, 40136, 44980, 45845, 50170, 61480, 65221, 73352, 79924, 89960, 91690, 99905, 100340, 119197, 130442, 159848, 183380, 199810, 200680, 238394, 260884, 265901, 326105, 366760, 399620, 476788, 521768, 531802, 595985, 652210, 799240, 953576, 1063604, 1191970, 1304420, 1329505, 2127208, 2383940, 2608840, 2659010, 3456713, 4767880, 5318020, 6913426, 10636040, 13826852, 17283565, 27653704, 34567130, 69134260, 138268520]

約数ペア:

[(1, 138268520), (2, 69134260), (4, 34567130), (5, 27653704), (8, 17283565), (10, 13826852), (13, 10636040), (20, 6913426), (26, 5318020), (29, 4767880), (40, 3456713), (52, 2659010), (53, 2608840), (58, 2383940), (65, 2127208), (104, 1329505), (106, 1304420), (116, 1191970), (130, 1063604), (145, 953576), (173, 799240), (212, 652210), (232, 595985), (260, 531802), (265, 521768), (290, 476788), (346, 399620), (377, 366760), (424, 326105), (520, 265901), (530, 260884), (580, 238394), (689, 200680), (692, 199810), (754, 183380), (865, 159848), (1060, 130442), (1160, 119197), (1378, 100340), (1384, 99905), (1508, 91690), (1537, 89960), (1730, 79924), (1885, 73352), (2120, 65221), (2249, 61480), (2756, 50170), (3016, 45845), (3074, 44980), (3445, 40136), (3460, 39962), (3770, 36676), (4498, 30740), (5017, 27560), (5512, 25085), (6148, 22490), (6890, 20068), (6920, 19981), (7540, 18338), (7685, 17992), (8996, 15370), (9169, 15080), (10034, 13780), (11245, 12296)]