20215618072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1237}}^1$

素因数の和:1461

約数の個数: 128

約数和(自身を含む): 43626723840

約数和(自身を除く): 23411105768

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 137, 148, 248, 274, 296, 403, 481, 548, 806, 962, 1096, 1147, 1237, 1612, 1781, 1924, 2294, 2474, 3224, 3562, 3848, 4247, 4588, 4948, 5069, 7124, 8494, 9176, 9896, 10138, 14248, 14911, 16081, 16988, 20276, 29822, 32162, 33976, 38347, 40552, 45769, 55211, 59644, 64324, 65897, 76694, 91538, 110422, 119288, 128648, 131794, 153388, 157139, 169469, 183076, 220844, 263588, 306776, 314278, 338938, 366152, 441688, 498511, 527176, 594997, 628556, 677876, 997022, 1189994, 1257112, 1355752, 1418839, 1994044, 2042807, 2203097, 2379988, 2837678, 3988088, 4085614, 4406194, 4759976, 5253539, 5675356, 6270353, 8171228, 8812388, 10507078, 11350712, 12540706, 16342456, 17624776, 18444907, 21014156, 25081412, 36889814, 42028312, 50162824, 68296007, 73779628, 81514589, 136592014, 147559256, 163029178, 194380943, 273184028, 326058356, 388761886, 546368056, 652116712, 777523772, 1555047544, 2526952259, 5053904518, 10107809036, 20215618072]

約数ペア:

[(1, 20215618072), (2, 10107809036), (4, 5053904518), (8, 2526952259), (13, 1555047544), (26, 777523772), (31, 652116712), (37, 546368056), (52, 388761886), (62, 326058356), (74, 273184028), (104, 194380943), (124, 163029178), (137, 147559256), (148, 136592014), (248, 81514589), (274, 73779628), (296, 68296007), (403, 50162824), (481, 42028312), (548, 36889814), (806, 25081412), (962, 21014156), (1096, 18444907), (1147, 17624776), (1237, 16342456), (1612, 12540706), (1781, 11350712), (1924, 10507078), (2294, 8812388), (2474, 8171228), (3224, 6270353), (3562, 5675356), (3848, 5253539), (4247, 4759976), (4588, 4406194), (4948, 4085614), (5069, 3988088), (7124, 2837678), (8494, 2379988), (9176, 2203097), (9896, 2042807), (10138, 1994044), (14248, 1418839), (14911, 1355752), (16081, 1257112), (16988, 1189994), (20276, 997022), (29822, 677876), (32162, 628556), (33976, 594997), (38347, 527176), (40552, 498511), (45769, 441688), (55211, 366152), (59644, 338938), (64324, 314278), (65897, 306776), (76694, 263588), (91538, 220844), (110422, 183076), (119288, 169469), (128648, 157139), (131794, 153388)]