15540980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8539}}^1$

素因数の和:8568

約数の個数: 48

約数和(自身を含む): 40172160

約数和(自身を除く): 24631180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 8539, 17078, 34156, 42695, 59773, 85390, 111007, 119546, 170780, 222014, 239092, 298865, 444028, 555035, 597730, 777049, 1110070, 1195460, 1554098, 2220140, 3108196, 3885245, 7770490, 15540980]

約数ペア:

[(1, 15540980), (2, 7770490), (4, 3885245), (5, 3108196), (7, 2220140), (10, 1554098), (13, 1195460), (14, 1110070), (20, 777049), (26, 597730), (28, 555035), (35, 444028), (52, 298865), (65, 239092), (70, 222014), (91, 170780), (130, 119546), (140, 111007), (182, 85390), (260, 59773), (364, 42695), (455, 34156), (910, 17078), (1820, 8539)]