688009960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 1740735360

約数和(自身を除く): 1052725400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 163, 181, 212, 220, 265, 326, 362, 424, 440, 530, 583, 652, 724, 815, 905, 1060, 1166, 1304, 1448, 1630, 1793, 1810, 1991, 2120, 2332, 2915, 3260, 3586, 3620, 3982, 4664, 5830, 6520, 7172, 7240, 7964, 8639, 8965, 9593, 9955, 11660, 14344, 15928, 17278, 17930, 19186, 19910, 23320, 29503, 34556, 35860, 38372, 39820, 43195, 47965, 59006, 69112, 71720, 76744, 79640, 86390, 95029, 95930, 105523, 118012, 147515, 172780, 190058, 191860, 211046, 236024, 295030, 324533, 345560, 380116, 383720, 422092, 475145, 527615, 590060, 649066, 760232, 844184, 950290, 1055230, 1180120, 1298132, 1563659, 1622665, 1900580, 2110460, 2596264, 3127318, 3245330, 3801160, 4220920, 6254636, 6490660, 7818295, 12509272, 12981320, 15636590, 17200249, 31273180, 34400498, 62546360, 68800996, 86001245, 137601992, 172002490, 344004980, 688009960]

約数ペア:

[(1, 688009960), (2, 344004980), (4, 172002490), (5, 137601992), (8, 86001245), (10, 68800996), (11, 62546360), (20, 34400498), (22, 31273180), (40, 17200249), (44, 15636590), (53, 12981320), (55, 12509272), (88, 7818295), (106, 6490660), (110, 6254636), (163, 4220920), (181, 3801160), (212, 3245330), (220, 3127318), (265, 2596264), (326, 2110460), (362, 1900580), (424, 1622665), (440, 1563659), (530, 1298132), (583, 1180120), (652, 1055230), (724, 950290), (815, 844184), (905, 760232), (1060, 649066), (1166, 590060), (1304, 527615), (1448, 475145), (1630, 422092), (1793, 383720), (1810, 380116), (1991, 345560), (2120, 324533), (2332, 295030), (2915, 236024), (3260, 211046), (3586, 191860), (3620, 190058), (3982, 172780), (4664, 147515), (5830, 118012), (6520, 105523), (7172, 95930), (7240, 95029), (7964, 86390), (8639, 79640), (8965, 76744), (9593, 71720), (9955, 69112), (11660, 59006), (14344, 47965), (15928, 43195), (17278, 39820), (17930, 38372), (19186, 35860), (19910, 34556), (23320, 29503)]