30879940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 86026752

約数和(自身を除く): 55146812

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 47, 52, 65, 70, 76, 91, 94, 95, 130, 133, 140, 182, 188, 190, 235, 247, 260, 266, 329, 361, 364, 380, 455, 470, 494, 532, 611, 658, 665, 722, 893, 910, 940, 988, 1222, 1235, 1316, 1330, 1444, 1645, 1729, 1786, 1805, 1820, 2444, 2470, 2527, 2660, 3055, 3290, 3458, 3572, 3610, 4277, 4465, 4693, 4940, 5054, 6110, 6251, 6580, 6916, 7220, 8554, 8645, 8930, 9386, 10108, 11609, 12220, 12502, 12635, 16967, 17108, 17290, 17860, 18772, 21385, 23218, 23465, 25004, 25270, 31255, 32851, 33934, 34580, 42770, 46436, 46930, 50540, 58045, 62510, 65702, 67868, 81263, 84835, 85540, 93860, 116090, 118769, 125020, 131404, 162526, 164255, 169670, 220571, 232180, 237538, 325052, 328510, 339340, 406315, 441142, 475076, 593845, 657020, 812630, 882284, 1102855, 1187690, 1543997, 1625260, 2205710, 2375380, 3087994, 4411420, 6175988, 7719985, 15439970, 30879940]

約数ペア:

[(1, 30879940), (2, 15439970), (4, 7719985), (5, 6175988), (7, 4411420), (10, 3087994), (13, 2375380), (14, 2205710), (19, 1625260), (20, 1543997), (26, 1187690), (28, 1102855), (35, 882284), (38, 812630), (47, 657020), (52, 593845), (65, 475076), (70, 441142), (76, 406315), (91, 339340), (94, 328510), (95, 325052), (130, 237538), (133, 232180), (140, 220571), (182, 169670), (188, 164255), (190, 162526), (235, 131404), (247, 125020), (260, 118769), (266, 116090), (329, 93860), (361, 85540), (364, 84835), (380, 81263), (455, 67868), (470, 65702), (494, 62510), (532, 58045), (611, 50540), (658, 46930), (665, 46436), (722, 42770), (893, 34580), (910, 33934), (940, 32851), (988, 31255), (1222, 25270), (1235, 25004), (1316, 23465), (1330, 23218), (1444, 21385), (1645, 18772), (1729, 17860), (1786, 17290), (1805, 17108), (1820, 16967), (2444, 12635), (2470, 12502), (2527, 12220), (2660, 11609), (3055, 10108), (3290, 9386), (3458, 8930), (3572, 8645), (3610, 8554), (4277, 7220), (4465, 6916), (4693, 6580), (4940, 6251), (5054, 6110)]