28663321960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{110909}}^1$

素因数の和:111011

約数の個数: 128

約数和(自身を含む): 80494041600

約数和(自身を除く): 51830719640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 71, 91, 104, 130, 140, 142, 182, 260, 280, 284, 355, 364, 455, 497, 520, 568, 710, 728, 910, 923, 994, 1420, 1820, 1846, 1988, 2485, 2840, 3640, 3692, 3976, 4615, 4970, 6461, 7384, 9230, 9940, 12922, 18460, 19880, 25844, 32305, 36920, 51688, 64610, 110909, 129220, 221818, 258440, 443636, 554545, 776363, 887272, 1109090, 1441817, 1552726, 2218180, 2883634, 3105452, 3881815, 4436360, 5767268, 6210904, 7209085, 7763630, 7874539, 10092719, 11534536, 14418170, 15527260, 15749078, 20185438, 28836340, 31054520, 31498156, 39372695, 40370876, 50463595, 55121773, 57672680, 62996312, 78745390, 80741752, 100927190, 102369007, 110243546, 157490780, 201854380, 204738014, 220487092, 275608865, 314981560, 403708760, 409476028, 440974184, 511845035, 551217730, 716583049, 818952056, 1023690070, 1102435460, 1433166098, 2047380140, 2204870920, 2866332196, 3582915245, 4094760280, 5732664392, 7165830490, 14331660980, 28663321960]

約数ペア:

[(1, 28663321960), (2, 14331660980), (4, 7165830490), (5, 5732664392), (7, 4094760280), (8, 3582915245), (10, 2866332196), (13, 2204870920), (14, 2047380140), (20, 1433166098), (26, 1102435460), (28, 1023690070), (35, 818952056), (40, 716583049), (52, 551217730), (56, 511845035), (65, 440974184), (70, 409476028), (71, 403708760), (91, 314981560), (104, 275608865), (130, 220487092), (140, 204738014), (142, 201854380), (182, 157490780), (260, 110243546), (280, 102369007), (284, 100927190), (355, 80741752), (364, 78745390), (455, 62996312), (497, 57672680), (520, 55121773), (568, 50463595), (710, 40370876), (728, 39372695), (910, 31498156), (923, 31054520), (994, 28836340), (1420, 20185438), (1820, 15749078), (1846, 15527260), (1988, 14418170), (2485, 11534536), (2840, 10092719), (3640, 7874539), (3692, 7763630), (3976, 7209085), (4615, 6210904), (4970, 5767268), (6461, 4436360), (7384, 3881815), (9230, 3105452), (9940, 2883634), (12922, 2218180), (18460, 1552726), (19880, 1441817), (25844, 1109090), (32305, 887272), (36920, 776363), (51688, 554545), (64610, 443636), (110909, 258440), (129220, 221818)]