209810790

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3581}}^1$

素因数の和:3635

約数の個数: 128

約数和(自身を含む): 660234240

約数和(自身を除く): 450423450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 378, 434, 465, 558, 630, 651, 837, 930, 945, 1085, 1302, 1395, 1674, 1890, 1953, 2170, 2790, 3255, 3581, 3906, 4185, 5859, 6510, 7162, 8370, 9765, 10743, 11718, 17905, 19530, 21486, 25067, 29295, 32229, 35810, 50134, 53715, 58590, 64458, 75201, 96687, 107430, 111011, 125335, 150402, 161145, 193374, 222022, 225603, 250670, 322290, 333033, 376005, 451206, 483435, 555055, 666066, 676809, 752010, 777077, 966870, 999099, 1110110, 1128015, 1353618, 1554154, 1665165, 1998198, 2256030, 2331231, 2997297, 3330330, 3384045, 3885385, 4662462, 4995495, 5994594, 6768090, 6993693, 7770770, 9990990, 11656155, 13987386, 14986485, 20981079, 23312310, 29972970, 34968465, 41962158, 69936930, 104905395, 209810790]

約数ペア:

[(1, 209810790), (2, 104905395), (3, 69936930), (5, 41962158), (6, 34968465), (7, 29972970), (9, 23312310), (10, 20981079), (14, 14986485), (15, 13987386), (18, 11656155), (21, 9990990), (27, 7770770), (30, 6993693), (31, 6768090), (35, 5994594), (42, 4995495), (45, 4662462), (54, 3885385), (62, 3384045), (63, 3330330), (70, 2997297), (90, 2331231), (93, 2256030), (105, 1998198), (126, 1665165), (135, 1554154), (155, 1353618), (186, 1128015), (189, 1110110), (210, 999099), (217, 966870), (270, 777077), (279, 752010), (310, 676809), (315, 666066), (378, 555055), (434, 483435), (465, 451206), (558, 376005), (630, 333033), (651, 322290), (837, 250670), (930, 225603), (945, 222022), (1085, 193374), (1302, 161145), (1395, 150402), (1674, 125335), (1890, 111011), (1953, 107430), (2170, 96687), (2790, 75201), (3255, 64458), (3581, 58590), (3906, 53715), (4185, 50134), (5859, 35810), (6510, 32229), (7162, 29295), (8370, 25067), (9765, 21486), (10743, 19530), (11718, 17905)]