28049840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3853}}^1$

素因数の和:3886

約数の個数: 80

約数和(自身を含む): 80286528

約数和(自身を除く): 52236688

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 3853, 7280, 7706, 15412, 19265, 26971, 30824, 38530, 50089, 53942, 61648, 77060, 100178, 107884, 134855, 154120, 200356, 215768, 250445, 269710, 308240, 350623, 400712, 431536, 500890, 539420, 701246, 801424, 1001780, 1078840, 1402492, 1753115, 2003560, 2157680, 2804984, 3506230, 4007120, 5609968, 7012460, 14024920, 28049840]

約数ペア:

[(1, 28049840), (2, 14024920), (4, 7012460), (5, 5609968), (7, 4007120), (8, 3506230), (10, 2804984), (13, 2157680), (14, 2003560), (16, 1753115), (20, 1402492), (26, 1078840), (28, 1001780), (35, 801424), (40, 701246), (52, 539420), (56, 500890), (65, 431536), (70, 400712), (80, 350623), (91, 308240), (104, 269710), (112, 250445), (130, 215768), (140, 200356), (182, 154120), (208, 134855), (260, 107884), (280, 100178), (364, 77060), (455, 61648), (520, 53942), (560, 50089), (728, 38530), (910, 30824), (1040, 26971), (1456, 19265), (1820, 15412), (3640, 7706), (3853, 7280)]