208748440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 531878400

約数和(自身を除く): 323129960

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 107, 136, 151, 152, 170, 190, 214, 302, 323, 340, 380, 428, 535, 604, 646, 680, 755, 760, 856, 1070, 1208, 1292, 1510, 1615, 1819, 2033, 2140, 2567, 2584, 2869, 3020, 3230, 3638, 4066, 4280, 5134, 5738, 6040, 6460, 7276, 8132, 9095, 10165, 10268, 11476, 12835, 12920, 14345, 14552, 16157, 16264, 18190, 20330, 20536, 22952, 25670, 28690, 32314, 34561, 36380, 40660, 48773, 51340, 57380, 64628, 69122, 72760, 80785, 81320, 97546, 102680, 114760, 129256, 138244, 161570, 172805, 195092, 243865, 274669, 276488, 306983, 323140, 345610, 390184, 487730, 549338, 613966, 646280, 691220, 975460, 1098676, 1227932, 1373345, 1382440, 1534915, 1950920, 2197352, 2455864, 2746690, 3069830, 5218711, 5493380, 6139660, 10437422, 10986760, 12279320, 20874844, 26093555, 41749688, 52187110, 104374220, 208748440]

約数ペア:

[(1, 208748440), (2, 104374220), (4, 52187110), (5, 41749688), (8, 26093555), (10, 20874844), (17, 12279320), (19, 10986760), (20, 10437422), (34, 6139660), (38, 5493380), (40, 5218711), (68, 3069830), (76, 2746690), (85, 2455864), (95, 2197352), (107, 1950920), (136, 1534915), (151, 1382440), (152, 1373345), (170, 1227932), (190, 1098676), (214, 975460), (302, 691220), (323, 646280), (340, 613966), (380, 549338), (428, 487730), (535, 390184), (604, 345610), (646, 323140), (680, 306983), (755, 276488), (760, 274669), (856, 243865), (1070, 195092), (1208, 172805), (1292, 161570), (1510, 138244), (1615, 129256), (1819, 114760), (2033, 102680), (2140, 97546), (2567, 81320), (2584, 80785), (2869, 72760), (3020, 69122), (3230, 64628), (3638, 57380), (4066, 51340), (4280, 48773), (5134, 40660), (5738, 36380), (6040, 34561), (6460, 32314), (7276, 28690), (8132, 25670), (9095, 22952), (10165, 20536), (10268, 20330), (11476, 18190), (12835, 16264), (12920, 16157), (14345, 14552)]