1212170680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{389}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 3234816000

約数和(自身を除く): 2022645320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 359, 389, 434, 620, 718, 778, 868, 1085, 1240, 1436, 1556, 1736, 1795, 1945, 2170, 2513, 2723, 2872, 3112, 3590, 3890, 4340, 5026, 5446, 7180, 7780, 8680, 10052, 10892, 11129, 12059, 12565, 13615, 14360, 15560, 20104, 21784, 22258, 24118, 25130, 27230, 44516, 48236, 50260, 54460, 55645, 60295, 77903, 84413, 89032, 96472, 100520, 108920, 111290, 120590, 139651, 155806, 168826, 222580, 241180, 279302, 311612, 337652, 389515, 422065, 445160, 482360, 558604, 623224, 675304, 698255, 779030, 844130, 977557, 1117208, 1396510, 1558060, 1688260, 1955114, 2793020, 3116120, 3376520, 3910228, 4329181, 4887785, 5586040, 7820456, 8658362, 9775570, 17316724, 19551140, 21645905, 30304267, 34633448, 39102280, 43291810, 60608534, 86583620, 121217068, 151521335, 173167240, 242434136, 303042670, 606085340, 1212170680]

約数ペア:

[(1, 1212170680), (2, 606085340), (4, 303042670), (5, 242434136), (7, 173167240), (8, 151521335), (10, 121217068), (14, 86583620), (20, 60608534), (28, 43291810), (31, 39102280), (35, 34633448), (40, 30304267), (56, 21645905), (62, 19551140), (70, 17316724), (124, 9775570), (140, 8658362), (155, 7820456), (217, 5586040), (248, 4887785), (280, 4329181), (310, 3910228), (359, 3376520), (389, 3116120), (434, 2793020), (620, 1955114), (718, 1688260), (778, 1558060), (868, 1396510), (1085, 1117208), (1240, 977557), (1436, 844130), (1556, 779030), (1736, 698255), (1795, 675304), (1945, 623224), (2170, 558604), (2513, 482360), (2723, 445160), (2872, 422065), (3112, 389515), (3590, 337652), (3890, 311612), (4340, 279302), (5026, 241180), (5446, 222580), (7180, 168826), (7780, 155806), (8680, 139651), (10052, 120590), (10892, 111290), (11129, 108920), (12059, 100520), (12565, 96472), (13615, 89032), (14360, 84413), (15560, 77903), (20104, 60295), (21784, 55645), (22258, 54460), (24118, 50260), (25130, 48236), (27230, 44516)]