641109760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 1610606592

約数和(自身を除く): 969496832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 107, 124, 128, 151, 155, 160, 214, 248, 256, 302, 310, 320, 428, 496, 535, 604, 620, 640, 755, 856, 992, 1070, 1208, 1240, 1280, 1510, 1712, 1984, 2140, 2416, 2480, 3020, 3317, 3424, 3968, 4280, 4681, 4832, 4960, 6040, 6634, 6848, 7936, 8560, 9362, 9664, 9920, 12080, 13268, 13696, 16157, 16585, 17120, 18724, 19328, 19840, 23405, 24160, 26536, 27392, 32314, 33170, 34240, 37448, 38656, 39680, 46810, 48320, 53072, 64628, 66340, 68480, 74896, 80785, 93620, 96640, 106144, 129256, 132680, 136960, 149792, 161570, 187240, 193280, 212288, 258512, 265360, 299584, 323140, 374480, 424576, 500867, 517024, 530720, 599168, 646280, 748960, 849152, 1001734, 1034048, 1061440, 1198336, 1292560, 1497920, 2003468, 2068096, 2122880, 2504335, 2585120, 2995840, 4006936, 4136192, 4245760, 5008670, 5170240, 5991680, 8013872, 10017340, 10340480, 16027744, 20034680, 20680960, 32055488, 40069360, 64110976, 80138720, 128221952, 160277440, 320554880, 641109760]

約数ペア:

[(1, 641109760), (2, 320554880), (4, 160277440), (5, 128221952), (8, 80138720), (10, 64110976), (16, 40069360), (20, 32055488), (31, 20680960), (32, 20034680), (40, 16027744), (62, 10340480), (64, 10017340), (80, 8013872), (107, 5991680), (124, 5170240), (128, 5008670), (151, 4245760), (155, 4136192), (160, 4006936), (214, 2995840), (248, 2585120), (256, 2504335), (302, 2122880), (310, 2068096), (320, 2003468), (428, 1497920), (496, 1292560), (535, 1198336), (604, 1061440), (620, 1034048), (640, 1001734), (755, 849152), (856, 748960), (992, 646280), (1070, 599168), (1208, 530720), (1240, 517024), (1280, 500867), (1510, 424576), (1712, 374480), (1984, 323140), (2140, 299584), (2416, 265360), (2480, 258512), (3020, 212288), (3317, 193280), (3424, 187240), (3968, 161570), (4280, 149792), (4681, 136960), (4832, 132680), (4960, 129256), (6040, 106144), (6634, 96640), (6848, 93620), (7936, 80785), (8560, 74896), (9362, 68480), (9664, 66340), (9920, 64628), (12080, 53072), (13268, 48320), (13696, 46810), (16157, 39680), (16585, 38656), (17120, 37448), (18724, 34240), (19328, 33170), (19840, 32314), (23405, 27392), (24160, 26536)]