19713070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 22381010

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 347, 437, 494, 598, 694, 874, 1235, 1495, 1735, 2185, 2470, 2990, 3470, 4370, 4511, 5681, 6593, 7981, 9022, 11362, 13186, 15962, 22555, 28405, 32965, 39905, 45110, 56810, 65930, 79810, 85709, 103753, 151639, 171418, 207506, 303278, 428545, 518765, 758195, 857090, 1037530, 1516390, 1971307, 3942614, 9856535, 19713070]

約数ペア:

[(1, 19713070), (2, 9856535), (5, 3942614), (10, 1971307), (13, 1516390), (19, 1037530), (23, 857090), (26, 758195), (38, 518765), (46, 428545), (65, 303278), (95, 207506), (115, 171418), (130, 151639), (190, 103753), (230, 85709), (247, 79810), (299, 65930), (347, 56810), (437, 45110), (494, 39905), (598, 32965), (694, 28405), (874, 22555), (1235, 15962), (1495, 13186), (1735, 11362), (2185, 9022), (2470, 7981), (2990, 6593), (3470, 5681), (4370, 4511)]