20120681628

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{19387}}^1$

素因数の和:19751

約数の個数: 72

約数和(自身を含む): 51489564672

約数和(自身を除く): 31368883044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 227, 254, 381, 454, 508, 681, 762, 908, 1143, 1362, 1524, 2043, 2286, 2724, 4086, 4572, 8172, 19387, 28829, 38774, 57658, 58161, 77548, 86487, 115316, 116322, 172974, 174483, 232644, 259461, 345948, 348966, 518922, 697932, 1037844, 2462149, 4400849, 4924298, 7386447, 8801698, 9848596, 13202547, 14772894, 17603396, 22159341, 26405094, 29545788, 39607641, 44318682, 52810188, 79215282, 88637364, 158430564, 558907823, 1117815646, 1676723469, 2235631292, 3353446938, 5030170407, 6706893876, 10060340814, 20120681628]

約数ペア:

[(1, 20120681628), (2, 10060340814), (3, 6706893876), (4, 5030170407), (6, 3353446938), (9, 2235631292), (12, 1676723469), (18, 1117815646), (36, 558907823), (127, 158430564), (227, 88637364), (254, 79215282), (381, 52810188), (454, 44318682), (508, 39607641), (681, 29545788), (762, 26405094), (908, 22159341), (1143, 17603396), (1362, 14772894), (1524, 13202547), (2043, 9848596), (2286, 8801698), (2724, 7386447), (4086, 4924298), (4572, 4400849), (8172, 2462149), (19387, 1037844), (28829, 697932), (38774, 518922), (57658, 348966), (58161, 345948), (77548, 259461), (86487, 232644), (115316, 174483), (116322, 172974)]