31415930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 128

約数和(自身を含む): 77414400

約数和(自身を除く): 45998470

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 23, 26, 35, 38, 46, 65, 70, 79, 91, 95, 115, 130, 133, 158, 161, 182, 190, 230, 247, 266, 299, 322, 395, 437, 455, 494, 553, 598, 665, 790, 805, 874, 910, 1027, 1106, 1235, 1330, 1495, 1501, 1610, 1729, 1817, 2054, 2093, 2185, 2470, 2765, 2990, 3002, 3059, 3458, 3634, 4186, 4370, 5135, 5530, 5681, 6118, 7189, 7505, 8645, 9085, 10270, 10465, 10507, 11362, 12719, 14378, 15010, 15295, 17290, 18170, 19513, 20930, 21014, 23621, 25438, 28405, 30590, 34523, 35945, 39026, 39767, 47242, 52535, 56810, 63595, 69046, 71890, 79534, 97565, 105070, 118105, 127190, 136591, 165347, 172615, 195130, 198835, 236210, 241661, 273182, 330694, 345230, 397670, 448799, 483322, 682955, 826735, 897598, 1208305, 1365910, 1653470, 2243995, 2416610, 3141593, 4487990, 6283186, 15707965, 31415930]

約数ペア:

[(1, 31415930), (2, 15707965), (5, 6283186), (7, 4487990), (10, 3141593), (13, 2416610), (14, 2243995), (19, 1653470), (23, 1365910), (26, 1208305), (35, 897598), (38, 826735), (46, 682955), (65, 483322), (70, 448799), (79, 397670), (91, 345230), (95, 330694), (115, 273182), (130, 241661), (133, 236210), (158, 198835), (161, 195130), (182, 172615), (190, 165347), (230, 136591), (247, 127190), (266, 118105), (299, 105070), (322, 97565), (395, 79534), (437, 71890), (455, 69046), (494, 63595), (553, 56810), (598, 52535), (665, 47242), (790, 39767), (805, 39026), (874, 35945), (910, 34523), (1027, 30590), (1106, 28405), (1235, 25438), (1330, 23621), (1495, 21014), (1501, 20930), (1610, 19513), (1729, 18170), (1817, 17290), (2054, 15295), (2093, 15010), (2185, 14378), (2470, 12719), (2765, 11362), (2990, 10507), (3002, 10465), (3059, 10270), (3458, 9085), (3634, 8645), (4186, 7505), (4370, 7189), (5135, 6118), (5530, 5681)]