20787601168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{12919}}^1$

素因数の和:13092

約数の個数: 80

約数和(自身を含む): 43576576000

約数和(自身を除く): 22788974832

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 79, 134, 152, 158, 268, 304, 316, 536, 632, 1072, 1264, 1273, 1501, 2546, 3002, 5092, 5293, 6004, 10184, 10586, 12008, 12919, 20368, 21172, 24016, 25838, 42344, 51676, 84688, 100567, 103352, 201134, 206704, 245461, 402268, 490922, 804536, 865573, 981844, 1020601, 1609072, 1731146, 1963688, 2041202, 3462292, 3927376, 4082404, 6924584, 8164808, 13849168, 16329616, 16445887, 19391419, 32891774, 38782838, 65783548, 68380267, 77565676, 131567096, 136760534, 155131352, 263134192, 273521068, 310262704, 547042136, 1094084272, 1299225073, 2598450146, 5196900292, 10393800584, 20787601168]

約数ペア:

[(1, 20787601168), (2, 10393800584), (4, 5196900292), (8, 2598450146), (16, 1299225073), (19, 1094084272), (38, 547042136), (67, 310262704), (76, 273521068), (79, 263134192), (134, 155131352), (152, 136760534), (158, 131567096), (268, 77565676), (304, 68380267), (316, 65783548), (536, 38782838), (632, 32891774), (1072, 19391419), (1264, 16445887), (1273, 16329616), (1501, 13849168), (2546, 8164808), (3002, 6924584), (5092, 4082404), (5293, 3927376), (6004, 3462292), (10184, 2041202), (10586, 1963688), (12008, 1731146), (12919, 1609072), (20368, 1020601), (21172, 981844), (24016, 865573), (25838, 804536), (42344, 490922), (51676, 402268), (84688, 245461), (100567, 206704), (103352, 201134)]