217471644

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:740

約数の個数: 144

約数和(自身を含む): 640974880

約数和(自身を除く): 423503236

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 37, 38, 39, 52, 57, 74, 76, 78, 111, 114, 117, 148, 156, 171, 222, 228, 234, 247, 333, 342, 444, 468, 481, 494, 661, 666, 684, 703, 741, 962, 988, 1322, 1332, 1406, 1443, 1482, 1924, 1983, 2109, 2223, 2644, 2812, 2886, 2964, 3966, 4218, 4329, 4446, 5772, 5949, 6327, 7932, 8436, 8593, 8658, 8892, 9139, 11898, 12559, 12654, 17186, 17316, 18278, 23796, 24457, 25118, 25308, 25779, 27417, 34372, 36556, 37677, 48914, 50236, 51558, 54834, 73371, 75354, 77337, 82251, 97828, 103116, 109668, 113031, 146742, 150708, 154674, 163267, 164502, 220113, 226062, 293484, 309348, 317941, 326534, 329004, 440226, 452124, 464683, 489801, 635882, 653068, 880452, 929366, 953823, 979602, 1271764, 1394049, 1469403, 1858732, 1907646, 1959204, 2788098, 2861469, 2938806, 3815292, 4182147, 5576196, 5722938, 5877612, 6040879, 8364294, 11445876, 12081758, 16728588, 18122637, 24163516, 36245274, 54367911, 72490548, 108735822, 217471644]

約数ペア:

[(1, 217471644), (2, 108735822), (3, 72490548), (4, 54367911), (6, 36245274), (9, 24163516), (12, 18122637), (13, 16728588), (18, 12081758), (19, 11445876), (26, 8364294), (36, 6040879), (37, 5877612), (38, 5722938), (39, 5576196), (52, 4182147), (57, 3815292), (74, 2938806), (76, 2861469), (78, 2788098), (111, 1959204), (114, 1907646), (117, 1858732), (148, 1469403), (156, 1394049), (171, 1271764), (222, 979602), (228, 953823), (234, 929366), (247, 880452), (333, 653068), (342, 635882), (444, 489801), (468, 464683), (481, 452124), (494, 440226), (661, 329004), (666, 326534), (684, 317941), (703, 309348), (741, 293484), (962, 226062), (988, 220113), (1322, 164502), (1332, 163267), (1406, 154674), (1443, 150708), (1482, 146742), (1924, 113031), (1983, 109668), (2109, 103116), (2223, 97828), (2644, 82251), (2812, 77337), (2886, 75354), (2964, 73371), (3966, 54834), (4218, 51558), (4329, 50236), (4446, 48914), (5772, 37677), (5949, 36556), (6327, 34372), (7932, 27417), (8436, 25779), (8593, 25308), (8658, 25118), (8892, 24457), (9139, 23796), (11898, 18278), (12559, 17316), (12654, 17186)]