20316870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 65302848

約数和(自身を除く): 44985978

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 49, 51, 63, 70, 85, 90, 98, 102, 105, 119, 126, 147, 153, 170, 210, 238, 245, 255, 271, 294, 306, 315, 357, 441, 490, 510, 542, 595, 630, 714, 735, 765, 813, 833, 882, 1071, 1190, 1355, 1470, 1530, 1626, 1666, 1785, 1897, 2142, 2205, 2439, 2499, 2710, 3570, 3794, 4065, 4165, 4410, 4607, 4878, 4998, 5355, 5691, 7497, 8130, 8330, 9214, 9485, 10710, 11382, 12195, 12495, 13279, 13821, 14994, 17073, 18970, 23035, 24390, 24990, 26558, 27642, 28455, 32249, 34146, 37485, 39837, 41463, 46070, 56910, 64498, 66395, 69105, 74970, 79674, 82926, 85365, 96747, 119511, 132790, 138210, 161245, 170730, 193494, 199185, 207315, 225743, 239022, 290241, 322490, 398370, 414630, 451486, 483735, 580482, 597555, 677229, 967470, 1128715, 1195110, 1354458, 1451205, 2031687, 2257430, 2902410, 3386145, 4063374, 6772290, 10158435, 20316870]

約数ペア:

[(1, 20316870), (2, 10158435), (3, 6772290), (5, 4063374), (6, 3386145), (7, 2902410), (9, 2257430), (10, 2031687), (14, 1451205), (15, 1354458), (17, 1195110), (18, 1128715), (21, 967470), (30, 677229), (34, 597555), (35, 580482), (42, 483735), (45, 451486), (49, 414630), (51, 398370), (63, 322490), (70, 290241), (85, 239022), (90, 225743), (98, 207315), (102, 199185), (105, 193494), (119, 170730), (126, 161245), (147, 138210), (153, 132790), (170, 119511), (210, 96747), (238, 85365), (245, 82926), (255, 79674), (271, 74970), (294, 69105), (306, 66395), (315, 64498), (357, 56910), (441, 46070), (490, 41463), (510, 39837), (542, 37485), (595, 34146), (630, 32249), (714, 28455), (735, 27642), (765, 26558), (813, 24990), (833, 24390), (882, 23035), (1071, 18970), (1190, 17073), (1355, 14994), (1470, 13821), (1530, 13279), (1626, 12495), (1666, 12195), (1785, 11382), (1897, 10710), (2142, 9485), (2205, 9214), (2439, 8330), (2499, 8130), (2710, 7497), (3570, 5691), (3794, 5355), (4065, 4998), (4165, 4878), (4410, 4607)]