64778980

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 120

約数和(自身を含む): 169404480

約数和(自身を除く): 104625500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 71, 76, 95, 98, 133, 140, 142, 190, 196, 245, 266, 284, 343, 355, 380, 490, 497, 532, 665, 686, 710, 931, 980, 994, 1330, 1349, 1372, 1420, 1715, 1862, 1988, 2401, 2485, 2660, 2698, 3430, 3479, 3724, 4655, 4802, 4970, 5396, 6517, 6745, 6860, 6958, 9310, 9443, 9604, 9940, 12005, 13034, 13490, 13916, 17395, 18620, 18886, 24010, 24353, 26068, 26980, 32585, 34790, 37772, 45619, 47215, 48020, 48706, 65170, 66101, 69580, 91238, 94430, 97412, 121765, 130340, 132202, 170471, 182476, 188860, 228095, 243530, 264404, 330505, 340942, 456190, 462707, 487060, 661010, 681884, 852355, 912380, 925414, 1322020, 1704710, 1850828, 2313535, 3238949, 3409420, 4627070, 6477898, 9254140, 12955796, 16194745, 32389490, 64778980]

約数ペア:

[(1, 64778980), (2, 32389490), (4, 16194745), (5, 12955796), (7, 9254140), (10, 6477898), (14, 4627070), (19, 3409420), (20, 3238949), (28, 2313535), (35, 1850828), (38, 1704710), (49, 1322020), (70, 925414), (71, 912380), (76, 852355), (95, 681884), (98, 661010), (133, 487060), (140, 462707), (142, 456190), (190, 340942), (196, 330505), (245, 264404), (266, 243530), (284, 228095), (343, 188860), (355, 182476), (380, 170471), (490, 132202), (497, 130340), (532, 121765), (665, 97412), (686, 94430), (710, 91238), (931, 69580), (980, 66101), (994, 65170), (1330, 48706), (1349, 48020), (1372, 47215), (1420, 45619), (1715, 37772), (1862, 34790), (1988, 32585), (2401, 26980), (2485, 26068), (2660, 24353), (2698, 24010), (3430, 18886), (3479, 18620), (3724, 17395), (4655, 13916), (4802, 13490), (4970, 13034), (5396, 12005), (6517, 9940), (6745, 9604), (6860, 9443), (6958, 9310)]