28965560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1051}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 71578080

約数和(自身を除く): 42612520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1051, 1060, 1378, 2102, 2120, 2756, 3445, 4204, 5255, 5512, 6890, 8408, 10510, 13663, 13780, 21020, 27326, 27560, 42040, 54652, 55703, 68315, 109304, 111406, 136630, 222812, 273260, 278515, 445624, 546520, 557030, 724139, 1114060, 1448278, 2228120, 2896556, 3620695, 5793112, 7241390, 14482780, 28965560]

約数ペア:

[(1, 28965560), (2, 14482780), (4, 7241390), (5, 5793112), (8, 3620695), (10, 2896556), (13, 2228120), (20, 1448278), (26, 1114060), (40, 724139), (52, 557030), (53, 546520), (65, 445624), (104, 278515), (106, 273260), (130, 222812), (212, 136630), (260, 111406), (265, 109304), (424, 68315), (520, 55703), (530, 54652), (689, 42040), (1051, 27560), (1060, 27326), (1378, 21020), (2102, 13780), (2120, 13663), (2756, 10510), (3445, 8408), (4204, 6890), (5255, 5512)]