138591700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 353866240

約数和(自身を除く): 215274540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 130, 155, 181, 190, 247, 260, 310, 325, 362, 380, 403, 475, 494, 589, 620, 650, 724, 775, 806, 905, 950, 988, 1178, 1235, 1300, 1550, 1612, 1810, 1900, 2015, 2353, 2356, 2470, 2945, 3100, 3439, 3620, 4030, 4525, 4706, 4940, 5611, 5890, 6175, 6878, 7657, 8060, 9050, 9412, 10075, 11222, 11765, 11780, 12350, 13756, 14725, 15314, 17195, 18100, 20150, 22444, 23530, 24700, 28055, 29450, 30628, 34390, 38285, 40300, 44707, 47060, 56110, 58825, 58900, 68780, 72943, 76570, 85975, 89414, 106609, 112220, 117650, 140275, 145886, 153140, 171950, 178828, 191425, 213218, 223535, 235300, 280550, 291772, 343900, 364715, 382850, 426436, 447070, 533045, 561100, 729430, 765700, 894140, 1066090, 1117675, 1385917, 1458860, 1823575, 2132180, 2235350, 2665225, 2771834, 3647150, 4470700, 5330450, 5543668, 6929585, 7294300, 10660900, 13859170, 27718340, 34647925, 69295850, 138591700]

約数ペア:

[(1, 138591700), (2, 69295850), (4, 34647925), (5, 27718340), (10, 13859170), (13, 10660900), (19, 7294300), (20, 6929585), (25, 5543668), (26, 5330450), (31, 4470700), (38, 3647150), (50, 2771834), (52, 2665225), (62, 2235350), (65, 2132180), (76, 1823575), (95, 1458860), (100, 1385917), (124, 1117675), (130, 1066090), (155, 894140), (181, 765700), (190, 729430), (247, 561100), (260, 533045), (310, 447070), (325, 426436), (362, 382850), (380, 364715), (403, 343900), (475, 291772), (494, 280550), (589, 235300), (620, 223535), (650, 213218), (724, 191425), (775, 178828), (806, 171950), (905, 153140), (950, 145886), (988, 140275), (1178, 117650), (1235, 112220), (1300, 106609), (1550, 89414), (1612, 85975), (1810, 76570), (1900, 72943), (2015, 68780), (2353, 58900), (2356, 58825), (2470, 56110), (2945, 47060), (3100, 44707), (3439, 40300), (3620, 38285), (4030, 34390), (4525, 30628), (4706, 29450), (4940, 28055), (5611, 24700), (5890, 23530), (6175, 22444), (6878, 20150), (7657, 18100), (8060, 17195), (9050, 15314), (9412, 14725), (10075, 13756), (11222, 12350), (11765, 11780)]