28778835540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5270849}}^1$

素因数の和:5270881

約数の個数: 96

約数和(自身を含む): 99176313600

約数和(自身を除く): 70397478060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 5270849, 10541698, 15812547, 21083396, 26354245, 31625094, 36895943, 52708490, 63250188, 68521037, 73791886, 79062735, 105416980, 110687829, 137042074, 147583772, 158125470, 184479715, 205563111, 221375658, 274084148, 316250940, 342605185, 368959430, 411126222, 442751316, 479647259, 553439145, 685210370, 737918860, 822252444, 959294518, 1027815555, 1106878290, 1370420740, 1438941777, 1918589036, 2055631110, 2213756580, 2398236295, 2877883554, 4111262220, 4796472590, 5755767108, 7194708885, 9592945180, 14389417770, 28778835540]

約数ペア:

[(1, 28778835540), (2, 14389417770), (3, 9592945180), (4, 7194708885), (5, 5755767108), (6, 4796472590), (7, 4111262220), (10, 2877883554), (12, 2398236295), (13, 2213756580), (14, 2055631110), (15, 1918589036), (20, 1438941777), (21, 1370420740), (26, 1106878290), (28, 1027815555), (30, 959294518), (35, 822252444), (39, 737918860), (42, 685210370), (52, 553439145), (60, 479647259), (65, 442751316), (70, 411126222), (78, 368959430), (84, 342605185), (91, 316250940), (105, 274084148), (130, 221375658), (140, 205563111), (156, 184479715), (182, 158125470), (195, 147583772), (210, 137042074), (260, 110687829), (273, 105416980), (364, 79062735), (390, 73791886), (420, 68521037), (455, 63250188), (546, 52708490), (780, 36895943), (910, 31625094), (1092, 26354245), (1365, 21083396), (1820, 15812547), (2730, 10541698), (5460, 5270849)]