257061930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{8263}}^1$

素因数の和:8351

約数の個数: 64

約数和(自身を含む): 664028928

約数和(自身を除く): 406966998

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 102, 122, 170, 183, 255, 305, 366, 510, 610, 915, 1037, 1830, 2074, 3111, 5185, 6222, 8263, 10370, 15555, 16526, 24789, 31110, 41315, 49578, 82630, 123945, 140471, 247890, 280942, 421413, 504043, 702355, 842826, 1008086, 1404710, 1512129, 2107065, 2520215, 3024258, 4214130, 5040430, 7560645, 8568731, 15121290, 17137462, 25706193, 42843655, 51412386, 85687310, 128530965, 257061930]

約数ペア:

[(1, 257061930), (2, 128530965), (3, 85687310), (5, 51412386), (6, 42843655), (10, 25706193), (15, 17137462), (17, 15121290), (30, 8568731), (34, 7560645), (51, 5040430), (61, 4214130), (85, 3024258), (102, 2520215), (122, 2107065), (170, 1512129), (183, 1404710), (255, 1008086), (305, 842826), (366, 702355), (510, 504043), (610, 421413), (915, 280942), (1037, 247890), (1830, 140471), (2074, 123945), (3111, 82630), (5185, 49578), (6222, 41315), (8263, 31110), (10370, 24789), (15555, 16526)]