208768140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:988

約数の個数: 144

約数和(自身を含む): 727953408

約数和(自身を除く): 519185268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 223, 252, 315, 420, 446, 630, 669, 743, 892, 1115, 1260, 1338, 1486, 1561, 2007, 2229, 2230, 2676, 2972, 3122, 3345, 3715, 4014, 4458, 4460, 4683, 5201, 6244, 6687, 6690, 7430, 7805, 8028, 8916, 9366, 10035, 10402, 11145, 13374, 13380, 14049, 14860, 15603, 15610, 18732, 20070, 20804, 22290, 23415, 26005, 26748, 28098, 31206, 31220, 33435, 40140, 44580, 46809, 46830, 52010, 56196, 62412, 66870, 70245, 78015, 93618, 93660, 104020, 133740, 140490, 156030, 165689, 187236, 234045, 280980, 312060, 331378, 468090, 497067, 662756, 828445, 936180, 994134, 1159823, 1491201, 1656890, 1988268, 2319646, 2485335, 2982402, 3313780, 3479469, 4639292, 4970670, 5799115, 5964804, 6958938, 7456005, 9941340, 10438407, 11598230, 13917876, 14912010, 17397345, 20876814, 23196460, 29824020, 34794690, 41753628, 52192035, 69589380, 104384070, 208768140]

約数ペア:

[(1, 208768140), (2, 104384070), (3, 69589380), (4, 52192035), (5, 41753628), (6, 34794690), (7, 29824020), (9, 23196460), (10, 20876814), (12, 17397345), (14, 14912010), (15, 13917876), (18, 11598230), (20, 10438407), (21, 9941340), (28, 7456005), (30, 6958938), (35, 5964804), (36, 5799115), (42, 4970670), (45, 4639292), (60, 3479469), (63, 3313780), (70, 2982402), (84, 2485335), (90, 2319646), (105, 1988268), (126, 1656890), (140, 1491201), (180, 1159823), (210, 994134), (223, 936180), (252, 828445), (315, 662756), (420, 497067), (446, 468090), (630, 331378), (669, 312060), (743, 280980), (892, 234045), (1115, 187236), (1260, 165689), (1338, 156030), (1486, 140490), (1561, 133740), (2007, 104020), (2229, 93660), (2230, 93618), (2676, 78015), (2972, 70245), (3122, 66870), (3345, 62412), (3715, 56196), (4014, 52010), (4458, 46830), (4460, 46809), (4683, 44580), (5201, 40140), (6244, 33435), (6687, 31220), (6690, 31206), (7430, 28098), (7805, 26748), (8028, 26005), (8916, 23415), (9366, 22290), (10035, 20804), (10402, 20070), (11145, 18732), (13374, 15610), (13380, 15603), (14049, 14860)]